Assignment:
Sales of Volkswagen's popular Beetle have grown steadily at auto dealerships in Nevada during the past 5 years (see table below).
Year Sales
1 455
2 502
3 516
4 570
5 580
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 [Q sales (round your response to the nearest whole number).