Given the series of demand data below
Period: 1 2 3 4 5 6 7 8 9 10
Demand: 43 31 52 44 23 48 40 39 30 40
Calculated forecasts for periods 7 through 11 using moving average models with n=2, n=4, n=6
Week n=2 n=4 n=6
7 35.4 41.9 40.1
8 44 38.7 39.6
9 39.4 37.4 41
10 34.4 39.2 37.2
11 35 37.2 36.6
Calculate the bias and MAD for each set of forecasts
Moving Average Forecast
n=2 n=4 n=6
Bias _ _ _
MAD _ _ _