Practical Management Science
Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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9

Sales of Volkswagen's popular Beetle have grown steadily at auto dealerships in Nevada during the past 5 years (see table below).
Year
1
2
3
4
5
Sales
460
495
518
575
575
a) Forecasted sales for year 6 using the trend projection (linear regression) method are 617.6 sales (round your response to one decimal place).
b) The MAD for a linear regression forecast is 8.32 sales (round your response to one decimal place).
c) The MSE for the linear regression forecast is sales (round your response to one decimal place).
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Transcribed Image Text:Sales of Volkswagen's popular Beetle have grown steadily at auto dealerships in Nevada during the past 5 years (see table below). Year 1 2 3 4 5 Sales 460 495 518 575 575 a) Forecasted sales for year 6 using the trend projection (linear regression) method are 617.6 sales (round your response to one decimal place). b) The MAD for a linear regression forecast is 8.32 sales (round your response to one decimal place). c) The MSE for the linear regression forecast is sales (round your response to one decimal place).
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