Security Administration Vii 2 Statistical Analysis

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Statistical Analysis

Transcript of Security Administration Vii 2 Statistical Analysis

Page 1: Security Administration Vii 2 Statistical Analysis
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Statistical Analysis

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Overview• Collecting Data

• Organizing Data

• Analyzing Data

• Correlations and Causality

• Review

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Statistical Analysis• Collecting

• Organizing

• Analyzing

DATA

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• Sense, Spot & Deal with Problems–Special Functions

–Employee Turnover

• Work with Multiple Influences

• Take Calculated Risks

Collecting Data

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Organizing Data• Simplify Affinity Diagrams

– Organize diverse data

– Engage many people

– Surface differing perspectives

– Promote common understanding

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Affinity Diagrams

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Analyzing Data

• Decision making

• Probability theory

–Mutually exclusive

–Collectively exhaustive

• Forecasting

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Monty Hall Problem 2

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Correlations and Causality• Variable

–Independent–Dependent

• Correlation–Relationship between two

variables

• Causality

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Causality

• Must be correlation

• Cause before effect

• Relationship not due to 3d variable (spurious)

• Test with experimental design

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Causation?

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ReviewWhy should security supervisors

understand statistics?

When should affinity diagrams be used?

Distinguish mutually exclusive from collectively exhaustive

How do you prove causality?

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That’s all . . .

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