A popular brand of tennis shoe has had the following demand history by quarters over a three-year period. Year 1 Demand Year 2 1 2 4 | 12 25 75 2 76 52 1234 Demand Year 3 | 16 32 71 62 1 2 3 4 Demand 14 45 84 47 a. Determine the seasonal factors for each quarter. b. Based on the result of part (a), determine the deseasonalized demand series. c. Predict the demand for each quarter of Year 4 for the deseasonalized series from a six-quarter moving average. d. Using the results from parts (a) and (c), predict the demand for the shoes for each quarter of Year 4.
A popular brand of tennis shoe has had the following demand history by quarters over a three-year period. Year 1 Demand Year 2 1 2 4 | 12 25 75 2 76 52 1234 Demand Year 3 | 16 32 71 62 1 2 3 4 Demand 14 45 84 47 a. Determine the seasonal factors for each quarter. b. Based on the result of part (a), determine the deseasonalized demand series. c. Predict the demand for each quarter of Year 4 for the deseasonalized series from a six-quarter moving average. d. Using the results from parts (a) and (c), predict the demand for the shoes for each quarter of Year 4.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:A popular brand of tennis shoe has had the following demand history by quarters
over a three-year period.
Year 1 Demand Year 2
1
2
4
| 12 25 75 2
1234
76
52
Demand Year 3
16
1
32
2
71
62
3
4
Demand
14
45
84
47
a. Determine the seasonal factors for each quarter.
b. Based on the result of part (a), determine the deseasonalized demand series.
c. Predict the demand for each quarter of Year 4 for the deseasonalized series from
a six-quarter moving average.
d. Using the results from parts (a) and (c), predict the demand for the shoes for
each quarter of Year 4.
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