Sales of? Volkswagen's popular Beetle have grown steadily at auto dealerships in Nevada during the past 5 years? (see table? below).
Year Sales
1 450
2 495
3 516
4 563
5 585
a) Forecasted sales for year 6 using a? 3-year moving average is nothing sales? (round your response to one decimal? place).
b) The MAD for a 3-year moving average based forecast is ? sales
c) The MSE for a 3-year moving average based forecast is ? sales