Operations Management
13th Edition
ISBN: 9780136860419
Author: Lee Krajewski
Publisher: Pearson Education
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Textbook Question
Chapter 4, Problem 15P
Refer to Solved Problem 4.1 on page 138.
- a. Use a 3-year moving average to
forecast the sales of Volkswagen Beetles in Nevada through year 6. - b. What is the MAD?
- c. What is the MSE?
Solved example 4.1
Sales of Volkswagen’s popular Beetle have grown steadily at auto dealerships in Nevada during the past 5 years (see table below). The sales manager had predicted before the new model was introduced that first year sales would be 410 VWs. Using exponential smoothing with a weight of α =.30, develop forecasts for years 2 through 6.
| YEAR | SALES | FORECAST |
| 1 | 450 | 410 |
| 2 | 495 | |
| 3 | 518 | |
| 4 | 563 | |
| 5 | 584 | |
| 6 | ? |
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Chapter 4 Solutions
Operations Management
Ch. 4 - Prob. 1EDCh. 4 - What is a qualitative foretasting model, and when...Ch. 4 - Identify and briefly describe the two general...Ch. 4 - Identify the three forecasting time horizons....Ch. 4 - Briefly describe the steps that are used to...Ch. 4 - A skeptical manager asks what medium-range...Ch. 4 - Explain why such forecasting devices as moving...Ch. 4 - What is the basic difference between a weighted...Ch. 4 - What three methods are used to determine the...Ch. 4 - Research and briefly describe the Delphi...
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