Question Help

Sales ofVolkswagen's popular Beetle have grown steadily at auto dealerships in Nevada during the past 5 years(see tablebelow).

Year

Sales

1

455

455

2

502

502

3

520

520

4

566

566

5

580

580

a) Forecasted sales for year 6 using a3-year moving average is

555.3

555.3 sales(round your response to one decimalplace).

b) The MAD for a3-year moving average based forecast is

(round your response to one decimalplace).

c) The MSE for a3-year moving average based forecast is ?

sales (round your response to the nearest wholenumber).