LSSMBB.exam · LSSMBB.exam.210q Number : LSSMBB Passing Score : 800 Time Limit : 120 min LSSBB...

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LSSMBB.exam.210q

Number: LSSMBBPassing Score: 800Time Limit: 120 min


LSSBB

Lean Six Sigma Black Belt Exam

Sections1. Volume A2. Volume B3. Volume C4. Volume D


Exam A

QUESTION 1Determine the process improvement goal which would require the usage of the DMADV methodology.


A. Improve Process Efficiency & Speed

B. Develop New Processes

C. Variation & Defect Reduction

D. Special Cause Elimination

Correct Answer: BSection: Volume AExplanation

Explanation/Reference:

QUESTION 2The person who ultimately selects Little y’s and vital x’s, has influence and often authority over the process and connecting organization is the:

A. Champion

B. Sponsor

C. LSS Leader

D. Master Black Belt



QUESTION 3


A team has just completed one of the DMAIC steps. As part of the DMAIC methodology, they now have an understanding of the root causes of the problem(s).What phase of the DMAIC process are have they most likely just completed?

A. Analyze

B. Improve

C. Control

D. Measure

Correct Answer: ASection: Volume AExplanation


QUESTION 4Which of the following terms refers to a trial implementation of the proposed design or process change on a reduced scale?

A. Production Run

B. Pilot

C. Design of Experiments

D. Comparative Method



QUESTION 5Determine the process improvement goal which would require the usage of the FORD-8D methodology.

A. Improve Process Efficiency & Speed

B. Develop New Processes

C. Variation & Defect Reduction

D. Special Cause Elimination

Correct Answer: D


Section: Volume AExplanation


QUESTION 6Estimate the inter quartile range from the following box plot of normally-distributed data.

A. 1

B. 2

C. 12

D. 8




QUESTION 7Scatter diagrams are most useful for which of the following?

A. Showing that output factor (Y) is normally distributed

B. Graphically showing the relationship between two variables

C. Determining whether a process is in control

D. Proving root causes of problems



QUESTION 8Match the following histograms with the appropriate distributions.


A. 1-Exponential, 2-Bimodal, 3-Normal, 4-Uniform

B. 1-Normal, 2-Uniform, 3-Exponential, 4-Bimodal

C. 1-Normal, 2-Exponential, 3-Uniform, 4-Bimodal

D. 1-Exponential, 2-Bimodal, 3-Uniform, 4-Normal



QUESTION 9An MSA study is generally performed during which of the DMAIC phases?

A. Define phase

B. Measure phase


C. Analyze phase

D. Control phase



QUESTION 10When performing a Measurement System Analysis, σtotal = 5. What is the required measurement unit of the measurement tool in order to have acceptablediscrimination?

A. 3 or less

B. 4.5 or less

C. 5 or less

D. 3.5 or less



QUESTION 11The ________________ the discrimination, the __________________ the changes that can be detected by the measurement tool.

A. Higher/higher

B. Higher/smaller

C. Smaller/smaller

D. None of the above




QUESTION 12With Measurement Systems Analysis (MSA), we want to determine how much of the variation in our data is due to:

A. Variation in our measurement system

B. Manufacturing Equipment

C. Part to part variation

D. Lot to lot variation



QUESTION 13% R & R can be expressed as:


A. % productivity divided by run rate

B. % repeatability divided by production (rate)

C. Sigma of the measurement system divided by total sigma

D. Variance of the measurement system divided by total variance

Correct Answer: CSection: Volume AExplanation


QUESTION 14


If you have a gauge study with a % R&R of 25% what should you do?

A. Pull the tool from production.

B. This is fine-go ahead.

C. This is not acceptable for critical measurements, you should look into improvements in the measurement process.

D. This is only an issue if you fail calibration.



QUESTION 15Three different operators perform MSA on 10 parts. They measure the same 10 parts twice. What would the Total # of readings be?

A. 30

B. 60

C. 120

D. 10



QUESTION 16A measurement system is said to have a consistent bias if:

A. The standard deviation of the system is consistent across the measurement range

B. The difference between the average reading of the measurement tool and reference value is the same across the operating range of the tool operation

C. The standard deviations of the reading given by the measurement tool when measuring a standard is the same across the operating range of the tool operation

D. All tools of the same type give the same variance reading

Correct Answer: B




QUESTION 17The variance of your measurement system is 25. The total standard deviation is 50. What is your % R & R?

A. 15%

B. 50%

C. 10%

D. 22%



QUESTION 18What type of knowledge is gained by doing an MSA?

A. Determine the size of the measurement variability

B. Determine if the measurement system is stable over time

C. Determine if the measurement system is capable of making the required measurements

D. All of the above

Correct Answer: DSection: Volume AExplanation


QUESTION 19A measurement system has sufficient discrimination if:


A. A measurement system should not discriminate

B. The measurement unit is at most one-tenth of the six sigma spread of the total process variation

C. You can get output to the second decimal point

D. If the tool can be easily calibrated



QUESTION 20When assessing gauge performance, you should look at the following (Choose the best answer).

A. Repeatability

B. Reproducibility

C. Repeatability and reproducibility

D. Improve variation of process being measured



QUESTION 21Given repeatability σRPT =4 and reproducibility σRPD = 3, calculate precision σMS

A. σMS = 3

B. σMS = 7

C. σMS = 25

D. σMS = 5




QUESTION 22The following is the best description for the purpose of a process map:

A. It is a tool used only after a Six Sigma project is completed

B. It is a tool to convert customer requirements to a set of measurable technical requirements with target values.

C. It is a tool for identifying alternative solutions or concepts

D. It is a tool used to identify all major steps, outputs, and inputs to look for potential causes of a problem.



QUESTION 23While checking regression model assumptions, an engineer generates the following plot of residuals versus predicted Y.

Which of the actions below is the most appropriate next step?


A. Transform the response and re-fit the model

B. Make additional runs, collect additional data and re-fit the model

C. No transformation is required for this type of pattern

D. Transform the independent variable and re-fit the model



QUESTION 24In a regression analysis, model assumptions are validated using which of the following?

A. The ANOVA table


B. A plot of X versus predicted/fitted Y

C. Chi-square statistic

D. Residual diagnostics



QUESTION 25For a multiple regression model, the R2 is the parameter that:

A. Represents the fraction of total variation explained by the model

B. Explains the strength of only one of the inputs in the model

C. Explains if the input factor causes the output response

D. Quantifies the slope of the line in the model



QUESTION 26When evaluating residuals from a regression model, a Black Belt discovers that she has outliers in the data. What is best course of action for the outliers?

A. Ignore them. They should not impact the model.

B. Omit them.

C. Explore the source of the outlier.

D. Transform the independent variable and re-fit the model.




QUESTION 27Which of the following statements is NOT true regarding the Simple Regression formula?


A. Y = the response variable

B. X = the input variable

C. β1 is the intercept

D. β0 and β1 are the model coefficients to be estimated in the data



QUESTION 28What can you conclude if the Sum of Squares Error is larger than Sum of Squares for the Model?

A. R-Squareisgreaterthan0.5

B. R-Square is less than 0

C. R-Square is equal to 1

D. R-Square is less than 0.5




QUESTION 29In analyzing some data, you first try multiple linear regression with all the factors and with interactions (example: Factor A times Factor B is interaction AB)

You obtain a multiple regression equation of the form:

Response = 15 + .13 A - .30 B - .02 C - .00001 AB + .0000004 AC - .00000013 BC +.000000 ABC.

The p-values for most of the factors and interactions are between 0 and .05, except interactions BC and ABC, which have p-values between .4 and .9.

Which of the following approaches might be appropriate to simplify the equation?

A. Drop all factors with negative coefficients.

B. Drop factors BC and ABC and rerun the multiple linear regression.

C. Drop factors B and C and rerun the multiple linear regression.

D. Drop factors B and C and rerun the multiple linear regression.



QUESTION 30In Logistic Regression, an Odds Ratio of 1 means?

A. One group is more likely than the other

B. Both groups are very likely

C. No association between groups - they are equally likely

D. There is a significant relationship between groups



QUESTION 31How do you check that a regression model is valid?


A. Residuals are normally distributed

B. Residuals are independent

C. Residuals have constant variation

D. All of the above



QUESTION 32While checking regression model assumptions, an engineer generates the following normal probability plot of residuals. Which of the actions below is the mostappropriate next step?


A. Transform the response and re-fit the model

B. Investigate run order for a time pattern

C. Add runs, collect additional data and re-fit the model

D. Remove the highest order term from the model



QUESTION 33Which of the following statements is true regarding correlation and simple regression?


A. A positive correlation is more significant than a negative correlation

B. R2 = the amount of variance explained by the regression model

C. A statistically significant correlation confirms a causal relationship between the X and Y variables

D. They are the best statistical methods when you have discrete X and Y variables



QUESTION 34What action should be taken if the residuals from a regression model show a pattern over time?

A. It is acceptable to use the results as they exist

B. Transform the input variable

C. Transform the output variable

D. Track down the assignable cause of the time trend I pattern



QUESTION 35Your team has done a SOV study and produced the following Multi-Van chart. What is the largest source of variation?


A. Time to Time

B. Within Unit

C. Unit to Unit




QUESTION 36A black belt is reviewing a process, as shown below. The specification limits are 1200 +1¡ª 200. Is the process stable?


A. Yes, all the data meets specification.

B. No, there is data that exceeds the specification limits.

C. No, the data is not on target.

D. Can’t tell from this graph.



QUESTION 37A Black Belt is working a project on battery life. The Black Belt finds that the process is unstable, but wants to do a capability analysis. The Black Belt should:

A. Continue on with the capability analysis to gain more insight

B. Work to identify the special causes before continuing on with the capability analysis

C. Transform the data

D. Find and remove the data points (outliers) that caused it to appear unstable. If the process is capable without the outliers, the outliers can simply be discarded.

Correct Answer: BSection: Volume A


Explanation


QUESTION 38A person owns the following process with a process target of 200. The Cp of the process is 2.0. Mean of the process is 200. What is the Cpk?

A. Cpk=2.0

B. Cpk=1

C. Cpk=1.5

D. Cpk=2.5




QUESTION 39A Black Belt is reviewing a stable, normal process that has a Cp = 3 and a Cpk = 1. In order to achieve a 6 sigma process, what must be done?

A. Reduce variation only

B. Shift the mean only

C. Reduce variation and shift the mean

D. Not enough information given



QUESTION 40A black belt is reviewing a process, as shown below. The specification limits are 1200 +1¡ª 200. Which of the following is the best statement?

A. Cpk < Cp

B. Cp < Cpk


C. Cpk = Cp

D. The process is on-target



QUESTION 41A black belt needs to determine if a process is stable. What technique should be used?

A. Capability Chart

B. Pareto Chart

C. Control Chart

D. Histogram



QUESTION 42You have been asked to monitor daily production yields to determine if the process yield is in statistical control. Select the control chart best suited for this purpose.

A. C-chart

B. U-chart

C. X and R chart

D. P-chart




QUESTION 43A black belt at a call center is reviewing the length of calls, as shown below. The phone call length is not to exceed 4 minutes. Is the call-in-process capable?

A. Yes, the data is from a stable population.

B. No, many calls exceed the specification.

C. Unsure, more data is needed.

D. Yes, all the calls meet specification.



QUESTION 44Lean Six Sigma process I product improvement suggests that the measure we use in our business is directly derived from which of the following sources?

A. Voice of Technology

B. Voice of Finance

C. Voice of the Customer

D. The Six Sigma Project Team

Correct Answer: C




QUESTION 45The most important process metrics are often determined by what the customer tells us is important to them. Which of these sequences describes the waycustomer requirements are converted to the customer-based process metrics?

A. Voice of the customer>critical to quality metrics>critical customer requirements

B. Voice of the customer>critical customer requirements>critical to process metrics

C. Critical customer requirements>critical to quality metrics>critical to process metrics

D. Voice of the customer>critical customer requirements>critical to quality metrics



QUESTION 46The main feature(s) that differentiate the Control Chart from the Run Chart are which the following?

A. The presence of a statistically calculated center line and upper and lower limits

B. The Run Chart shows data over time and the Control Chart shows data at one point in time

C. The Run Chart requires more data than the Control Chart

D. The Run Chart is used in the ¡°Measure¡± Phase while the Control Chart is used in the “Control” Phasex’



QUESTION 47Which of the following are true regarding the Central Limit Theorem?


A. Sample averages are normally distributed as sample size gets larger.

B. Sample averages converge on the population mean.

C. Sample standard deviations are dependent upon the standard deviation of the population from which it was sampled.

D. All of the above



QUESTION 48Suppose an X-bar / S Chart revealed that the variation of a process was consistent over time (consistent standard deviation, consistent mean) but a significantproportion of outcomes fell outside the customer requirements. Which of the following conclusions can best be made about the process?

A. The process is in control but has poor capability

B. The process variation is out of control

C. Special or assignable causes are affecting the process

D. The process mean needs to be reduced



QUESTION 49A ___________ is used primarily to track the stability of the average value of a metric of interest.

A. NP Chart

B. Xbar-R Chart

C. I-MR Chart

D. C Chart

Correct Answer: B


Section: Volume BExplanation


QUESTION 50For her injection molding project a Belt needed to track the percentage of defectives of a particular sample set so she used a ___________ to display the data?

A. Individual Chart

B. C Chart

C. Xbar Chart

D. P Chart

Correct Answer: DSection: Volume BExplanation


QUESTION 51Which of these graphs demonstrates conditions which would be sufficient to enable OCAP for the process?

A. Xbar Chart

B. Time Series Chart

C. Neither

D. Both

Correct Answer: ASection: Volume BExplanation


QUESTION 52Control Charts were developed by Dr. Shewhart to track data over time. To detect Special Cause variation the Control Charts use which of these?


A. Data shift analysis

B. Outlier analysis methods

C. Center Line and Control Limits


Correct Answer: CSection: Volume BExplanation


QUESTION 53Common and ______________ Cause Variation are the focus of Statistical Process Control.


A. Uncommon

B. Ordinary

C. Special

D. Selective



QUESTION 54Special Cause Variation falls into which two categories?

A. Natural & Unnatural

B. Short Term & Long Term


C. Assignable & Pattern

D. Attribute & Discreet



QUESTION 55Range Charts are the technique used to determine if Special Causes are occurring within the subgroups of the ______________.

A. Histograms

B. SPC Charts

C. NP Charts

D. Pareto Charts

Correct Answer: BSection: Volume BExplanation


QUESTION 56If the production is for higher volume and monitoring and the Mean and variability is to be monitored for four machines producing product and the characteristic tobe monitored is Variable Data, which SPC Chart is best to be selected?

A. Xbar-R Chart

B. Individual-MR Chart

C. NP Chart

D. CUSUM Chart




QUESTION 57When a Belt Poka-Yoke’s a defect out of the process entirely then she should track the activity with a robust SPC system on the characteristic of interest in thedefect as an early warning system.

A. True

B. False



QUESTION 58Following the completion of a LSS project the Belt not only creates a Control Plan he also develops a _____________ so those involved in the process know whatto do when the critical metrics move out of spec.

A. Response Plan

B. Call List

C. Chain-of-Command

D. Defect Analysis Plan



QUESTION 59The Control Limits width varies if the sample size varies for which type of chart?

A. P Charts

B. NP Charts

C. Xbar-R Charts

D. Time Series Charts




QUESTION 60Which of these elements are not included in Implementation plans?

A. Work breakdown structure

B. Risk management plans

C. Cost/Benefit ratios

D. Planned audits of work completion



QUESTION 61Upon completion and validation of an improvement to a process a Belt and the Project Team create a Control Plan that contains which of these?

A. Standard operating work description of the process change

B. Description of the monitoring system in place to assure continued compliance

C. Summary of the targeted critical metrics for process performance measurement

D. All of the above



QUESTION 62


What conclusion is most correct about the Experimental Design shown here with the response in the far right column?

A. No factor has enough statistical confidence greater than 95% to have an impact on the response rate

B. Constant, Adv and Bev are the only factors statistically affecting the response rate with 95% confidence or more

C. If the Adv is increased from the low level to the high level, the response rate increases

D. The response level is statistically concluded to only need the Adv and Bev factors set at the low level to get the largest response rate

E. This design does not have enough experimental runs to conclude anything as evidenced by the lack of P-values in the MINITABTM output



QUESTION 63Which statement(s) are correct about the Factorial Plot shown here? (Note: There are 3 correct answers).


A. When the cutting speed increased from low to high level, the tool age increases

B. The coefficient of the metal hardness is positively related to the output of tool age

C. The coded coefficient is lower for cutting speed than the cutting angle related to the output of tool age

D. These plots prove a statistically significance factor with 95% confidence

E. These plots are an example of interaction plots

Correct Answer: ABCSection: Volume BExplanation


QUESTION 64How many experimental runs exist in a Full Factorial and fully randomized design for 4 factors with 2 replicates for the Corner Points and no Center Points? Thefactors in the experiment are only at 2-levels.

A. 10

B. 32


C. 256

D. 64



QUESTION 65If an experiment has 5 factors and no replicates for a 2-level Experimental Design with 16 experimental runs which statement is incorrect?

A. The Experimental Design is half-fractional

B. The Main Effects are confounded with only 4-way interactions

C. The Main Effects for the 5 factors are not aliased or confounded but the 2-way interactions are confounded with the 3-way interactions

D. The experiment has 8 experimental runs with the first factor at the high level



QUESTION 66Which statement(s) are correct about the Pareto Chart shown here for the DOE analysis? (Note: There are 2 correct answers).


A. It is unknown from this graph how many factors were in the Experimental Design

B. The factors to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 2.06

C. The effects to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 0.05

D. The factors to keep in the mathematical model with a 5% alpha risk are BE, AB, A and AD

Correct Answer: ACSection: Volume BExplanation


QUESTION 67Fractional Factorial, ____________and Response Surface Method are types of planned experiments.

A. Multi-Vari Analysis


B. Baldridge Channels

C. One Factor at a Time or OFAT

D. Factorial Design



QUESTION 68Relative to a Design of Experiments the term ________________ refers to variables being a linear combination of each other.

A. Mirror Image

B. Directly Parallel

C. Collinear




QUESTION 69Which statement(s) are incorrect about Fractional Factorial Designs?

A. A Half Fractional Design for 5 factors has the same number of experimental runs as a Full Factorial Design for 4 factors assuming no repeats or replicates orCenter Points

B. Quarter Fractional experiments can exist for those with 4 factors

C. Resolution V design is desired while controlling costs of experimentation

D. Half Fractional experiments do not exist for those designs with only 2 factors




QUESTION 70If in an experiment all possible variable pairs sum to zero the design is Orthogonal.

A. True

B. False



QUESTION 71Which Experimental Design typically is most associated with the fewest number of input variables or factors in the design?

A. Fractional Factorial design

B. Full Factorial design

C. Simple Linear Regression

D. Response Surface Design



QUESTION 72The method of Steepest Ascent guides you toward a target inside the original inference space.

A. True

B. False

Correct Answer: BSection: Volume B


Explanation


QUESTION 73Situations where standardized work needs to be incorporated include all of these except _____________________.


A. Machines continually operating to reduce the labor cost per piece

B. Lack of a system to assure proper inventory levels at repair stations

C. Changeover instructions incomplete

D. Process flow for the same product assembly taking various cycle time for completion



QUESTION 74The Lean toolbox includes all of these items except ________________.

A. Mistake Proofing

B. Visual Factory

C. Design of Experiments

D. Inventory Management




QUESTION 75Questions that can be best answered by a Visual Factory include all of these except _____________________.

A. Are downtime issues easily noted?

B. Can extra inventory be seen easily?

C. Are unneeded tools or supplies easily noted?

D. Are setups optimized for lower scrap levels?



QUESTION 76If a Six Sigma project was to reduce repair station inventory and the team found the inventory was creeping up over time which Lean tools should be considered inthe Control Phase to reestablish and sustain the project success?

A. Review the Visual Factory to assure inventory in excess of desired visible

B. Improve the lighting to assure adequate visibility

C. Analyze data from supplier deliveries

D. Reword the standardized work instructions to use active verbs and not passive phrases



QUESTION 77When a Belt implements an improvement that is automated thus requiring no particular understanding for use he has applied which Lean tool?

A. Mistake Proofing

B. Kaizen Event


C. 5S

D. None



QUESTION 78Kaizens or Kaikakus and Six Sigma projects are intended to create incremental process improvements versus breakthrough, significant improvements.

A. True

B. False



QUESTION 79Which of these items contribute to what is necessary for successful Kaizen events?

A. Analysis tools

B. Management support

C. Operator support

D. All of these answers are correct



QUESTION 80


Kanban establishes a means of monitoring production, conveyance and delivery information such that efficient flow is established. The method used by Kanban isto require a _________ before anything moves.

A. Sign-off

B. Signal

C. Bell to ring

D. Work order



QUESTION 81When a Belt decides to use written procedures and visual controls to improve the consistency of the tasks that must occur in the process he is improving he hasutilized the _________________ activity of 5S.

A. Sustaining

B. Sorting

C. Standardizing

D. Straightening



QUESTION 82SPC Charts are used extensively in different business and decision-making environments. In this example a vendor is being selected based on speed of delivery.Which of the conclusions would help you pick a vendor for your needs regarding lead-time of delivery from your vendors? (Note: There are 4 correct answers).


A. Vendor A with a much shorter lead time in delivery

B. Vendor B as it has a better consistency (lower variance) on lead time

C. Vendor B as Vendor A shows a situation out of control as shown in red

D. Vendor B as the Control Limits are much narrower than Vendor A

E. Vendor B with higher lead time, but a process with much narrower Control Limits

Correct Answer: BCDESection: Volume BExplanation



QUESTION 83Fractional Factorial designs are used to reduce the ____________ because the number of runs has been lowered.

A. Time and cost of experiments

B. Number of people involved

C. Number of data measurement points

D. Output summary



QUESTION 84Fractional Factorial Designs are used to analyze factors to model the output as a function of inputs if Hypothesis Testing in the Analyze Phase was inadequate tosufficiently narrow the factors that significantly impact the output(s).

A. True

B. False



QUESTION 85A Factorial Experiment based on a Level 2 Design with 6 factors would require 16 runs to fully assess the interactions.

A. True

B. False

Correct Answer: B




QUESTION 86A Full Factorial experiment using a 3 level 3 factor approach has been proposed to test the viability of an extrusion machine experiment. How many treatmentcombinations will this approach involve?

A. 6

B. 9

C. 27

D. 54



QUESTION 87Screening experiments are the proper choice when a Belt is faced with the situation of highly Fractional Factorial Designs.

A. True

B. False



QUESTION 88Which statement(s) are correct about the DOE Factorial plot output here? (Note: There are 3 correct answers).


A. Two factors were operated at 3 levels each

B. The highest tool age was achieved with metal hardness at high level while keeping the cutting speed at the low level

C. The design indicated above is a 32 factorial design

D. The cutting speed and cutting angle are at the low level for the least tool age achieved

E. All factors had 2 levels in the experiment

Correct Answer: BCESection: Volume BExplanation


QUESTION 89Which statement(s) are incorrect for the Regression Analysis shown here? (Note: There are 2 correct answers).


A. The air-fuel ratio explains most of the TurbineOutput variation

B. The Regression explains over 98% of the process variation

C. This Multiple Linear Regression has three statistically significant independent variables

D. If the air-fuel ratio increases by 1, the TurbineOutput more than triples

E. The SteamExitTemp explains the most variation of the TurbineOutput

Correct Answer: DESection: Volume BExplanation


QUESTION 90Which statement(s) are most correct for the Regression Analysis shown here?


A. The Regression explains 50.8% of the process variation

B. The air-fuel ratio explains most of the TurbineOutput variation

C. This Simple Linear Regression explains 98+% of the process variation

D. This Multiple Linear Regression has four statistically significant independent variables



QUESTION 91When a Belt properly analyzes the results of an experiment he must examine the Residuals in expectation of finding all of the following except _________.

A. Some Residuals higher than others

B. Some Residuals lower than others

C. All Residuals within 2 Standard Deviations of the Mean

D. Residuals will represent a Linear Regression




QUESTION 92Which statement(s) are correct about the Regression shown here? (Note: There are 2 correct answers).

A. The dependent variable is the outside temperature

B. The relationship between outside temperature and number of customers per hour is a Linear Regression

C. The dashed lines indicate with 95% confidence where all of the process data should fall between

D. The dashed lines indicate with 95% confidence the estimate for the Quadratic Regression Line

E. The predicted number of customers per hour is close to 5 if the outside temperature is 10 deg C

Correct Answer: DE




QUESTION 93Which of these might contribute to similar distributions having Unequal Variance?


A. Extreme tails

B. Outliers

C. Multiple Modes

D. All of the above



QUESTION 94A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasingmanager is depending on the Belt’s effort requiring that the average cost of an internal critical raw material component be less than or equal to $4,200 in order tostay within budget. Using a sample of 35 first article components, a Mean of the new product upgrade price of $4,060, and a Standard Deviation of $98 wasestimated. Select the answer that best states the Practical Problem.

A. If the average cost per component is $4,200 or less, then the purchase manager will introduce the new product upgrade with new components.

B. If the average cost per component is greater than $4,200, then the purchase manager will introduce the new product upgrade with new components.

C. Only if the average cost per product upgrade is $4,060, will the purchase manager introduce new product upgrades with new components.

D. If the average cost per new product upgrade is less than $180, then the purchase manager will introduce the new product upgrade with new components.

Correct Answer: C




QUESTION 95A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasingmanager is depending on the Belt’s effort requiring that the average cost of an internal critical raw material component be less than or equal to $4,200 in order tostay within budget. Using a sample of 35 first article components, a Mean of the new product upgrade price of $4,060, and a Standard Deviation of $98 wasestimated. The Alternative Hypothesis in the above example is?

A. The Standard Deviation is equal to $300.

B. The Mean is less than $4,320.

C. The Mean is equal to $4,060.

D. The Mean is less than $4,200.

E. The Mean is greater than $ 4,200.

Correct Answer: ESection: Volume BExplanation


QUESTION 96A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasingmanager is depending on the Belt’s effort requiring that the average cost of an internal critical raw material component be less than or equal to $3,600 in order tostay within budget. Using a sample of 42 first article components, a Mean of the new product upgrade price of $3,200 and a Standard Deviation of $180 wasestimated. Based on the data provided, the Z value for the data assuming a Normal Distribution is?

A. 1.11

B. 2.22

C. 4.30

D. 5.42




QUESTION 97A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasingmanager is depending on the Belt’s effort requiring that the average cost of an internal critical raw material component be less than or equal to $3,800 in order tostay within budget. Using a sample of 38 first article components, a Mean of the new product upgrade price of $3,680, and a Standard Deviation of $120 wasestimated. In order to increase the Long Term Z value to 5, what is the maximum long term variation in pricing the Belt can accept for his upgraded critical rawmaterial component?

A. $6

B. $12

C. $24

D. $48



QUESTION 98Sally and Sara sell flower pots at their garage sale. Sally motivates Sara mentioning that they will sell a minimum of 15 pots per day if the outside temperatureexceeds 60o F. From a sample, whose population is assumed to follow a Normal Distribution, taken for 30 days at 60 degrees or more an average of 13.6 pots perday were sold with a Standard Deviation of 0.7 pots. For the sales accomplished above, what test would validate if they met their requirements?

A. F Test

B. Test for Equal Variance

C. Chi Square Test

D. One-Sample t-Test




QUESTION 99Sally and Sara sell flower pots at their garage sale. Sally motivates Sara mentioning that they will sell a minimum of 15 pots per day if the outside temperatureexceeds 60o F. From a sample, whose population is assumed to follow a Normal Distribution, taken for 30 days at 60 degrees or more an average of 13.6 pots perday were sold with a Standard Deviation of 0.7 pots. The statistical Degrees of Freedom for this example are?

A. 1

B. 29

C. 30

D. 31

E. 2



QUESTION 100Sally and Sara sell flower pots at their garage sale. Martha motivates Rose mentioning that they will sell a minimum of 16 pots per day if the outside temperatureexceeds 60o F. From a sample, whose population is assumed to follow a Normal Distribution, taken for 30 days at 60 degrees or more an average of 15.2 pots perday were sold with a Standard Deviation of 0.6 pots. What is the Z value for this sales process?

A. 0.67

B. 1.13

C. 1.33

D. 2.66



QUESTION 101The relationship between a response variable and one or more independent variables is investigated and modeled by use of __________________.

A. X-Y Matrix


B. Baldridge Assessment

C. Analysis of Variance (ANOVA)

D. Critical X's Definition



QUESTION 102An ANOVA used across many dependent variables could increase the Beta risk.

A. True

B. False



QUESTION 103The Mann-Whitney test is a powerful test and is unique to situations from which of the choices listed? (Note: There are 2 correct answers).

A. Testing the identity of two populations

B. Focuses on equality of the Median of the two populations

C. Less powerful than the traditional “t-test”

D. More widely applicable than the traditional “t-test”

Correct Answer: BDSection: Volume BExplanation



QUESTION 104Assessing process proportion as opposed to evaluating a process with respect to a set target can be done using which of these?

A. Process proportion equals some value range

B. Process proportion equals some desired value

C. Target is current

D. Proportion of the tail is equal



QUESTION 105A Non-parametric Test should be used if just one distribution is not Normal out of the two or more gathered.

A. True

B. False



QUESTION 106Contingency Tables are used to test for association, or dependency, between two or more classifications.

A. True

B. False




QUESTION 107For the data shown here which statement(s) are true? (Note: There are 2 correct answers).

A. With 95% confidence, we cannot conclude if the samples are from three Normal Distributions.

B. With greater than 95% confidence, we conclude the samples are from Non-normal Distributions.

C. If we wanted to compare the Central Tendencies of these three samples we would use the one way ANOVA test.

D. If we wanted to compare the Central Tendencies of these three samples we could use Mood’s Median test.

Correct Answer: BDSection: Volume BExplanation


QUESTION 108A(n) ______________ is best used to compare a Machine 1 average quality characteristic to the same quality characteristic of Machine 2.

A. F test

B. 1-Sample t-test

C. 2-Sample t-test

D. ANOVA test




QUESTION 109For the data set shown here which of these statements is/are true?

A. Hypothesis Testing of Means or Medians cannot be done since there are an unequal number of observations for the 3 samples

B. A Paired T-test would be applicable for comparing Grade B and Grade A since they follow each other in the data set

C. Grade A has the lowest sample Mean of the 3 samples

D. Grade A has a higher sample Mean than Grade B



QUESTION 110Review the analysis shown here.


Which statements are true about the process? (Note: There are 3 correct answers).

A. The initial focus for this project would be to determine why the thicknesses are so frequently too low.

B. The majority of the process is closer to the lower specification limit.

C. This process is described with the Weibull Distribution.

D. The process has more problems with Variation than Centering.

E. The process follows a non-normal distribution with the given data.

Correct Answer: BDESection: Volume BExplanation



QUESTION 111A Lean Six Sigma project is attempting to reduce inventory days. The Process Capability will be monitored as part of the Control Phase to track the sustainability ofthe improvement.

Which distribution type is best used for performing the Capability Analysis?

A. Weibull Distribution

B. Normal Distribution


C. Exponential Distribution

D. Logistic Distribution

E. Gaussian Distribution



QUESTION 112What conclusion is most correct about the Experimental Design shown here with the response in the far right column?

A. No factor has enough statistical confidence greater than 95% to have an impact on the response rate

B. Constant, Adv and Bev are the only factors statistically affecting the response rate with 95% confidence or more

C. If the Adv is increased from the low level to the high level, the response rate increases

D. The response level is statistically concluded to only need the Adv and Bev factors set at the low level to get the largest response rate

E. This design does not have enough experimental runs to conclude anything as evidenced by the lack of P-values in the MINITABTM output



QUESTION 113


A(n) ________________ has occurred when two inputs have a greater impact on a change in the output than either of the inputs has by itself.

A. Dependency

B. Bimodal reaction

C. Interaction

D. Amplified effect



QUESTION 114When conducting a Hypothesis Test using Continuous Data the proper sample size is influenced by the extent to which we need to assess a Difference to bedetected and the inherent variation in the process.


A. True

B. False



QUESTION 115The validity of the decision made with Hypothesis Testing is dependent upon all of these except ___________________.

A. Beta risk

B. Alpha risk


C. Range of data

D. Sample size



QUESTION 116Statistical Difference is the magnitude of difference or change required to distinguish between a true difference, brought about by change or improvement, and onethat could have occurred by chance.

A. True

B. False



QUESTION 117If in an experiment all possible variable pairs sum to zero the design is Orthogonal.

A. True

B. False

Correct Answer: ASection: Volume CExplanation


QUESTION 118Which Experimental Design typically is most associated with the fewest number of input variables or factors in the design?


A. Response Surface design

B. Full Factorial design

C. Simple Linear Regression

D. Fractional Factorial design



QUESTION 119The method of Steepest Ascent guides you toward a target inside the original inference space.

A. True

B. False

Correct Answer: BSection: Volume CExplanation


QUESTION 120The Lean toolbox includes all of the following items except __________.

A. Poke-Yoke

B. Standard Operating Procedures

C. Kaizen

D. 5S the work area




QUESTION 121Questions that can be best answered by a Visual Factory include all of these except _____________________.

A. Are setups optimized for lower scrap levels?

B. Can extra inventory be seen easily?

C. Can changeover challenges be recognized?

D. Are unneeded tools or supplies easily noted?



QUESTION 122Situations where standardized work needs to be incorporated include all of these except _____________________.

A. Changeover instructions incomplete

B. Lack of a system to assure proper inventory levels at repair stations

C. Machines continually operating to reduce the labor cost per piece

D. Process flow for the same product assembly taking various cycle time for completion

Correct Answer: CSection: Volume CExplanation


QUESTION 123If a Six Sigma project was to reduce changeover times and the team found the project success was decreasing over time since changeover times began to creepback up, which Lean tools should be considered in the Control Phase to reestablish and sustain the project success?

A. Improve the lighting to assure adequate visibility

B. Confirm a Visual Factory exists to assure proper communication of status of machines

C. Implement Kanbans to assure enough inventory for the process step

D. Reword the standardized work instructions to use active verbs and not passive phrases




QUESTION 124Kaizens or Kaikakus and Six Sigma projects are intended to create breakthrough, significant process improvement versus minor, incremental improvements.

A. True

B. False



QUESTION 125Using this partial Z Table, how many units from a month’s production run are expected to not satisfy customer requirements for the following process?Upper specification limit: 7.2 Lower specification limit: 4.3 Mean of the process: 5.9 Standard Deviation: 0.65 Monthly production: 450 units

A. 3

B. 7

C. 10

D. 12



QUESTION 126Which of these items are not part of what is necessary for successful Kaizens?


A. Good lighting

B. Management support

C. Operator support

D. Analysis tools



QUESTION 127When a Belt implements an improvement that is automated thus requiring no particular understanding for use he has applied which Lean tool?

A. Mistake Proofing

B. Kaizen Event

C. 5S




QUESTION 128Kanban establishes a means of monitoring production, conveyance and delivery information such that efficient flow is established. The method used by Kanban isto require a _________ before anything moves.

A. Sign-off

B. Signal

C. Bell to ring

D. Work order

Correct Answer: BSection: Volume C


Explanation


QUESTION 129For a Kanban to be successful which of these must occur?

A. Consistent cycle times

B. Fairly stable process demand of product or service

C. Low defect rate of incoming product or service

D. All of the above

Correct Answer: DSection: Volume CExplanation


QUESTION 130SPC Charts are used extensively in different business and decision-making environments. In this example a vendor is being selected based on speed of delivery.Which of the conclusions would help you pick a vendor for your needs regarding lead-time of delivery from your vendors? (Note: There are 4 correct answers).


A. Vendor A with a much shorter lead time in delivery

B. Vendor B as it has a better consistency (lower variance) on lead time

C. Vendor B since Vendor A shows a situation out of control as shown in red

D. Vendor B since the Control Limits are much narrower than Vendor A

E. Vendor B has higher lead time, but a process with much narrower Control Limits


Correct Answer: BCDESection: Volume CExplanation


QUESTION 131Common and Special Cause ______________ are the focus of Statistical Process Control.

A. Prediction

B. Ideation

C. Capability

D. Variation



QUESTION 132Special Cause Variation falls into which two categories? (Note: There are 2 correct answers).

A. Natural

B. Short term

C. Assignable

D. Pattern

Correct Answer: CDSection: Volume CExplanation


QUESTION 133Control Charts were developed by Dr. Shewhart to track data over time. To detect Special Cause variation the Control Charts use which of these?


A. Data shift analysis

B. Outlier analysis methods

C. Center Line and Control Limits




QUESTION 134If the production is for higher volume and monitoring and the Mean and variability is to be monitored for four machines producing product and the characteristic tobe monitored is Variable Data, which SPC Chart is best to be selected?

A. Xbar-R Chart

B. Individual-MR Chart

C. NP Chart

D. CUSUM Chart



QUESTION 135If you can Poka-Yoke a defect out of the process entirely then you do not need use SPC on the characteristic of interest in the defect.

A. True

B. False




QUESTION 136Range Charts are the technique used to determine if ______________ are occurring within the subgroups of the SPC Charts.

A. Common Causes

B. Special inspections

C. Unnatural forces

D. Special Causes



QUESTION 137If a process has subgroups for Variable data and the process runs for a long period of time, then the best pair of SPC Charts to use would be an Xbar and_________.


A. NP Chart

B. Individuals Chart

C. R Chart

D. C Chart




QUESTION 138The Control Limits width varies if the sample size varies for which type of chart?

A. P Charts

B. NP Charts

C. Xbar-R Charts

D. Time Series Charts



QUESTION 139Which of these elements are not included in Implementation plans?

A. Work breakdown structure

B. Cost/Benefit ratios

C. Risk management plans

D. Planned audits of work completion



QUESTION 140Following the completion of a LSS project the Belt not only creates a Control Plan he also develops a _____________ so those involved in the process know whatto do when the critical metrics move out of spec.

A. Response Plan

B. Call List

C. Chain-of-Command

D. Defect Analysis Plan




QUESTION 141Six Sigma is a business improvement discipline whose fundamental view is based on a _________ oriented approach of the business.

A. Profit

B. Performance

C. Process

D. Predatory



QUESTION 142Much of the Six Sigma methodology is used to identify and remove causes for _____________ .

A. Process Variation

B. Material Costs

C. Excess Inventory

D. Lost Sales



QUESTION 143


When variation is removed from the output of a process then the process customer can have more confidence in the experience that results from the process.

A. True

B. False



QUESTION 144The distance between the Mean of a data set and the Point of Inflection on a Normal curve is called the _______________.

A. Curve Spread

B. Standard Deviation

C. Numerical Average

D. Data Breadth



QUESTION 145One of the foundations of Lean Six Sigma is the concept that the output of a process (Y) is influenced by the process inputs (X’s) and is commonly shown as whichformula?

A. Y = Z(X2)

B. Y = f(X3)

C. Y = f(Xn)

D. Y = g(X+ 1.5)




QUESTION 146When we gather information for the Voice of the Business we are primarily interested in information concerning the _____________ of the business.

A. Advertising budget

B. Market share

C. Profitability

D. Ownership



QUESTION 147When a Belt creates a Process Map she will use a __________________ to depict a decision point requiring a Yes or No decision.

A. Circle

B. Square

C. Diamond

D. Rectangle



QUESTION 148A Belt has determined that the inventory of repair parts at a rework station can be reduced by 45%. According to Cost of Poor Quality (COPQ) definitions inventoryreduction would be considered _______________.

A. Soft Savings


B. COPQ efficiency

C. Median Savings

D. Hard Savings



QUESTION 149Customers make their decisions based on Features, Integrity (of the seller) Delivery and ___________?

A. Color

B. Expense

C. Season

D. None



QUESTION 150The Hardware Store ordered ten lawn mower from the manufacturer and just before shipping the manufacturer found one to have a motor that wouldn’t start. Forthe manufacturer this would be categorized as what type of cost?

A. Internal Failure Costs

B. External Failure Costs

C. Prevention Costs

D. Appraisal Costs




QUESTION 151Cost of Poor Quality (COPQ) can be classified as Visible Costs and Hidden Costs. All these items are Hidden Cost except __________________.

A. Lost Customer Loyalty

B. Returns

C. Time Value of Money

D. Late Delivery



QUESTION 152Which of these are examples of business metrics or Key Performance Indicators commonly referred to as KPI’s?

A. Cycle Time

B. Defects

C. No. of Units Reworked

D. Labor Hours

E. All of these answers are correct

Correct Answer: ESection: Volume CExplanation


QUESTION 153When one speaks of 20% of something contributing 80% of the affect they are referring to what is known as the _________________.

A. Shewhart Example

B. Pareto Principle


C. Balance Equation

D. Connection Principle



QUESTION 154Using this data calculate the percentage of DPU.

A. 2.74

B. 3.23

C. 4.56

D. 5.93



QUESTION 155As a means of measuring the effects on other areas of a process as a result of changes in the primary metric we also define and track ________________.

A. Parallel process metrics

B. Secondary metrics

C. Tertiary metrics

D. Industry standards




QUESTION 156Calculate the Rolled Throughput Yield of this process using this data.DatA. unit input: 1450, unit output: 1390, defects repaireD. 320, scrap: 60

A. 71.33%

B. 72.66%

C. 73.79%

D. 77.93%



QUESTION 157“A calculated time frame that matches customer demand” is a definition of what Lean Principles term?

A. Value Stream

B. Kaizen event

C. Takt time

D. Kanban



QUESTION 158What dollar amount of savings would a project show if it reduced your outstanding Accounts Receivable by $1.4 million dollars to $5.3 million total and yourorganization’s marginal cost of capital was 6.2%?



A. $43,400

B. $86,800

C. $117,500

D. $328,600



QUESTION 159A Lean Six Sigma project is attempting to reduce inventory days. The Process Capability will be monitored as part of the Control Phase to track the sustainability ofthe improvement.


Which distribution type is best used for performing the Capability Analysis?

A. Weibull Distribution

B. Normal Distribution

C. Exponential Distribution

D. Logistic Distribution

E. Gaussian Distribution


Correct Answer: ASection: Volume DExplanation


QUESTION 160Which of these might contribute to similar distributions having Unequal Variance?

A. Extreme tails

B. Outliers

C. Multiple Modes

D. All of the above

Correct Answer: DSection: Volume DExplanation


QUESTION 161Sally and Sara sell flower pots at their garage sale. Sally motivates Sara mentioning that they will sell a minimum of 15 pots per day if the outside temperatureexceeds 60o F. From a sample, whose population is assumed to follow a Normal Distribution, taken for 30 days at 60 degrees or more an average of 13.6 pots perday were sold with a Standard Deviation of 0.7 pots. The statistical Degrees of Freedom for this example are?

A. 1

B. 29

C. 30

D. 31

E. 2

Correct Answer: BSection: Volume DExplanation



QUESTION 162Sally and Sara sell flower pots at their garage sale. Sally motivates Sara mentioning that they will sell a minimum of 22 pots per day if the outside temperatureexceeds 60o F. From a sample, whose population is assumed to follow a Normal Distribution, taken for 30 days at 60 degrees or more an average of 18.2 pots perday were sold with a Standard Deviation of 0.9 pots. What is the Z value for this sales process?

A. 1.23

B. 1.62

C. 2.11

D. 4.22



QUESTION 163The relationship between a response variable and one or more independent variables is investigated and modeled by use of which of these?

A. X-Y Matrix

B. Baldridge Assessment

C. Critical X's Definition

D. Analysis of Variance (ANOVA)



QUESTION 164An ANOVA used across many dependent variables could increase the Beta risk.

A. True

B. False




QUESTION 165A Non-parametric Test should be used if just one distribution is not Normal out of the two or more gathered.

A. True

B. False



QUESTION 166The Mann-Whitney test is a powerful test and is unique to situations from which of the choices listed? (Note: There are 2 correct answers).

A. Testing the identity of two populations

B. Focuses on equality of the Median of the two populations

C. Less powerful than the traditional “t-test”

D. More widely applicable than the traditional “t-test”

Correct Answer: BDSection: Volume DExplanation


QUESTION 167Assessing process proportion as opposed to evaluating a process with respect to a set target can be done using one or more of these. (Note: There are 2 correctanswers).

A. Process proportion equals some desired value


B. Process proportion equals some value range

C. Target is current

D. When we deal with Attribute type data

E. Proportion of the tail is equal

Correct Answer: ADSection: Volume DExplanation


QUESTION 168For the data shown here which statement(s) are true? (Note: There are 2 correct answers).

A. With 95% confidence, we cannot conclude if the samples are from three Normal Distributions

B. With greater than 95% confidence, we conclude the samples are from Non-normal Distributions

C. If we wanted to compare the Central Tendencies of these three samples we would use the one way ANOVA test

D. If we wanted to compare the Central Tendencies of these three samples we could use Mood’s Median test

E. If we wanted to compare the Central Tendencies of all three samples we could use the Mann-Whitney test

Correct Answer: BDSection: Volume DExplanation



QUESTION 169Following process modifications, the Null Hypothesis states that no improvement to the process has occurred. If we discover the Null Hypothesis Test was rejectedwhen it was false that would be a(n) _______________.

A. Type I Error

B. Type II Error

C. Type III Error

D. Alpha Error



QUESTION 170If the results from a Hypothesis Test are located in the "Region of Doubt" area, what can be concluded?

A. Rejection of the Alpha

B. We fail to reject the Null Hypothesis

C. The test was conducted improperly

D. We reject the Null Hypothesis



QUESTION 171When conducting a Hypothesis Test using Continuous Data the proper sample size is influenced only by the extent to which we need to assess a Difference to bedetected but not the inherent variation in the process.

A. True

B. False




QUESTION 172Statistical Difference is the magnitude of difference or change required to distinguish between a true difference, brought about by change or improvement, and onethat could have occurred by chance.

A. True

B. False



QUESTION 173To be an effective Lean Six Sigma practitioner one must understand the difference between ___________________________.

A. ANOVA and the Analysis of Variance

B. Nonparametric tests and tests of Non-normal Data

C. Practical and Statistical significance

D. F-test and test of variances of 2 samples

Correct Answer: CSection: Volume DExplanation


QUESTION 174The validity of the decision made with Hypothesis Testing is dependent upon all of the following except ______________________.


A. Beta risk

B. Range of data

C. Alpha risk

D. Sample size



QUESTION 175To establish a sample size that will allow the proper overlap of distributions we do which of these?

A. Multiply Alpha by 1.75

B. Calculate one minus Beta

C. Calculate Beta plus 2

D. Multiply Beta by 3



QUESTION 176From the variance F-test shown above, which of these conclusions is/are valid?


A. The variance between the class score distribution is not significantly different

B. This test applies only to Normal Distributed data at 99 % confidence

C. The variance between the class score distribution is significantly different

D. There are not enough data points to make any statistical conclusions



QUESTION 177Time is always the metric on the horizontal scale of a(n) ___________ Chart.

A. Pareto

B. Xbar

C. Multi-Vari

D. NP



QUESTION 178On a _________________ one can see a pattern from the graphed points such that conclusions can be drawn about the largest family of Variation.

A. Multi-Vari Chart

B. Weighted Scale

C. X-Y Matrix

D. Poisson Chart

Correct Answer: ASection: Volume D


Explanation


QUESTION 179For a batch manufacturing process, while assessing short term process variation, which variation category(ies) should one need to focus on? (Note: There are 2correct answers).

A. Variation within consecutive pieces

B. Variation among consecutive batches

C. Variation among groups of pieces

D. Variation among the completed product

Correct Answer: ABSection: Volume DExplanation


QUESTION 180When the Inputs, X’s, for your process are Normally Distributed about the Mean, the Outputs, Y’s, will be Normally Distributed.

A. True

B. False





QUESTION 181Some of the sources for different types of error that can be quantified using Statistical Analysis are which of these?

A. Error in sampling

B. Bias in sampling

C. Error in measurement

D. All of the above



QUESTION 182For a Normal Distribution as samples size increases the Range in Mean and Standard Deviation decrease relative to the Mean and Standard Deviation of thepopulation.

A. True

B. False



QUESTION 183From this list select the best example of Bias in Sampling.

A. Testing the completeness of cooking a cake but the testers cannot agree on how to measure internal temperature

B. Testing the sharpness of a razor blade while the sample of 500 are from the same model razor

C. Testing the weight of participants at a wrestling event and only measuring those who finished second or better

D. Testing a hand-held GPS models for durability using samples only from Nokia Model P120

Correct Answer: C


Section: Volume DExplanation


QUESTION 184The Central Limit Theorem says that as the sample size becomes large the sample Mean distribution will form a Normal Distribution, ____________________.

A. If the Measurement System is properly calibrated

B. When the data is collected accurately

C. If the shape is evenly spread

D. No matter what the shape of the population distribution of individuals



QUESTION 185A statistical test or Hypothesis Test is performed to reject or fail to reject a stated hypothesis and it converts the Practical Problem into a Statistical Problem.

A. True

B. False



QUESTION 186The class score distribution of schools in a metropolitan area is shown here along with an analysis output. Comment on the statistical significance between theMeans of the two distributions. Select the most appropriate statement.


A. The two class Means are statistically different from each other

B. The two class Means statistically not different from each other

C. Inadequate information on class Means to make any statistical conclusions

D. A visual comparison shows that class Means are not statistically different

Correct Answer: ASection: Volume D


Explanation


QUESTION 187An operator is measuring the distance between two points. Which is most likely to be influenced by the operator?

A. Precision of the measurement

B. Accuracy of the measurement

C. Calibration of the instrument

D. All of these answers are correct



QUESTION 188Accuracy can be assessed in several ways and a fairly accurate means of measurement is visual comparison.

A. True

B. False



QUESTION 189With Measurement System Analysis we are concerned with two issues that impact the potential variability of the data. They are _____________________.

A. Precision and Accuracy

B. Reliability and Repeatability

C. Error and Spread


D. Sensitivity and Deflection



QUESTION 190Appropriate measures means that measurements are ______________.

A. Representative

B. Sufficient

C. Contextual

D. Relevant

E. All of these answers are correct

Correct Answer: ESection: Volume DExplanation


QUESTION 191What aspects of Measurement Systems Analysis (MSA) studies are applicable when the process used to measure does not damage the part?

A. Destructive variable gage R&R and Crossed Study

B. Destructive variable gage R&R and Nested Study

C. Nondestructive variable gage R&R and Crossed Study

D. Nondestructive variable gage R&R and Nested Study




QUESTION 192Which item(s) listed would impact the Process Capability for a process with a continuous output? (Note: There are 4 correct answers).

A. Shape of process data distribution (e.g. Normal Distribution)

B. Process Technology

C. Process Standard Deviation

D. Presence of Special Causes or solely Common Causes

E. Seasonal variation in process

Correct Answer: ACDESection: Volume DExplanation


QUESTION 193The reported Cpk for a process with an average of 98 units, a spread of 16 units and upper and lower specification limits of 115 and 90 units would be?

A. 0.5

B. 0.75

C. 1.00

D. 1.25



QUESTION 194For Attribute Data, Process Capability is defined as the average proportion of nonconforming products.

A. True

B. False

Correct Answer: A


Section: Volume DExplanation


QUESTION 195When we compare short-term and long-term Capability which of these is true?

A. Cp is better for the short term

B. Both short-term and long-term performance are alike

C. Performance tends to improve over time

D. Cp is better for the long-term



QUESTION 196What is the Ppk of a process with a spread of 24 units, an average of 68, an upper limit of 82 and a lower limit of 54?

A. 1.68

B. 2.00

C. 4.00

D. 4.42



QUESTION 197Which statements are correct about the advanced Capability Analysis shown here? (Note: There are 3 correct answers).


A. This is a Poisson Capability Analysis

B. The average DPU with 95% confidence is between 0.024 and 0.0295

C. The DPU does not seem to vary depending on sample size

D. The process shows only one instance of being out of control statistically so we have confidence in the estimated DPU of this process

E. The maximum DPU in one observation was nearly 0.0753

Correct Answer: BCESection: Volume DExplanation



QUESTION 198The Greek letter “sigma” is used by mathematicians to signify _____________.

A. Curve Width

B. Numerical Average

C. Standard Deviation

D. Data Spread



QUESTION 199Much of the Six Sigma methodology is used to identify and remove causes for _____________ .

A. Process Variation

B. Material Costs

C. Excess Inventory

D. Lost Sales



QUESTION 200When variation is removed from the output of a process then the process customer can have more confidence in the experience that results from the process.

A. True

B. False




QUESTION 201The distance between the Mean of a data set and the Point of Inflection on a Normal curve is called the _______________.

A. Curve Spread

B. Standard Deviation

C. Numerical Average

D. Data Breadth



QUESTION 202One of the foundations of Lean Six Sigma is the concept that the output of a process (Y) is influenced by the process inputs (X’s) and is commonly shown as whichformula?

A. Y = Z(X2)

B. Y = f(X3)

C. Y = f(Xn)

D. Y = g(X+ 1.5)



QUESTION 203Those people who have a interest in the outputs of a process are known as _____________________.

A. Stakeholders


B. Senior management

C. Co-workers

D. Process owners



QUESTION 204A Process Map is created in order that a Belt can __________________.

A. Follow the product to the end

B. Get the line people’s names correct

C. Capture all the activities comprising the process

D. Manage the input inventory delivery schedule



QUESTION 205Customers make their decisions based on Features, Integrity (of the seller) Delivery and ___________?

A. Color

B. Expense

C. Season

D. None




QUESTION 206Sally bought a blender from her local appliance store. When she changed blades the blender would not function. For the manufacturer this would be categorizedas what type of cost?

A. Internal Failure Costs

B. External Failure Costs

C. Prevention Costs

D. Appraisal Costs



QUESTION 207Cost of Poor Quality (COPQ) can be classified as Visible Costs and Hidden Costs. Which of these items is a Visible Cost?

A. Lost Customer Loyalty

B. Time Value of Money

C. Returns

D. Late Delivery



QUESTION 208A Belt has determined that the inventory of repair parts at a rework station can be reduced by 45%. According to Cost of Poor Quality (COPQ) definitions inventoryreduction would be considered _______________.

A. Soft Savings

B. COPQ efficiency


C. Median Savings

D. Hard Savings



QUESTION 209When one speaks of 20% of something contributing 80% of the affect they are referring to what is known as the _________________.

A. Shewhart Example

B. Connection Principle

C. Balance Equation

D. Pareto Principle



QUESTION 210Using this data calculate the percentage of DPU.Data: 763 defects, 18,000 units.

A. 2.12

B. 3.42

C. 4.24

D. 5.72



LSSMBB.exam · LSSMBB.exam.210q Number : LSSMBB Passing Score : 800 Time Limit : 120 min LSSBB...

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