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 3-year moving average based forecast is( )sales (round your response to one decimal place).

c) The MSE for a 3-year moving average based forecast is ( )sales (round your response to the nearest whole number).

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 2 3 460 510 518 570 585 4 5 a) Forecasted sales for year 6 using a 3-year moving average is sales (round your response to one decimal place)