Sales of? Volkswagen's popular Beetle have grown steadily at auto dealerships in Nevada during the past 5 years? (see table below)

Year Sales

1 460

2 502

3 518

4 563

5 585

a) Forecasted sales for year 6 using a 3-year moving average is sales (round your response to one decimal place).

B) The MAD for a linear regression forecast is _ 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).