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University Of Windsor
INDUSTRIAL & MANUFACTURING SYSTEMS ENGINEERING
91-503-01/92-590-61 Production & Inventory Control Fall 2013 Term
Assignment 1 (total 55 points)
Due time: October 3, 2013
Chapter 1
Question 1: Problem 30 on page 37 (15 points)
Question2: Problem 34 on page 38 (5 points)
Chapter 2
Question 3: Problem 24 on page 73 (10 points)
Question 4: Problem 30 on page 78 (10 points)
Question 5: Extra problem:(15 points)
ThreeStar, an online computer store, has had the following demand history
by quarters over a three-year period.
2005 demand 2006 demand 2007 demand
1 24 1 32 1 42
2 15 2 19 2 27
3 55 3 66 3 72
4 78 4 85 4 98
a. Determine the seasonal factors for each quarter by the method of
centered moving average
b. Based on the result of part (a), determine the deseasonalized demand
series.
c. Predict the demand for each quarter of 2008 by using regression
analysis to the deseasonalized series.