#4).Substitute for Problem # 4 in attachment)-Calculate the MAD,revised MAD and the Revised Forecast for months 1-6 for the following three groups,where the Forecast stands for Forecast Demand.Has your forecast improved ? Tell me how would you go about improving the revised forecast( for each of the three groups)without actually doing so?

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Month Actual Demand Forecast Actual Demand Forecast Actual Demand Forecast

1 100 125 270 230 140 135

2 90 125 240 230 130 135

3 110 125 280 230 160 135

4 115 125 260 230 180 135

5 130 125 300 230 200 135

6 115 125 220 230 190 135