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
3 516
4 555
5 595
??a) Forecasted sales for year 6 using the trend? projection? (linear? regression) method are______ sales ???(round one? decimal? place).
b) The MAD for a linear regression forecast is____sales ???(round one? decimal? place).
??c) The MSE for the linear regression forecast is ___sales ???(round one? decimal? place).