Question: Refer to Solved Problem 4.1 on page 144 . a) Use a 3-year moving average to forecast the sales of Volkswagen Beetles in Nevada through

Refer to Solved Problem 4.1 on page 144 .

a) Use a 3-year moving average to forecast the sales of Volkswagen Beetles in Nevada through year 6.

b) What is the MAD? PX

c) What is the MSE?

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