The following tabulations are actual sales of units for six months, (assume F_1 = A_1) Calculate forecasts for the remaining five months using simple exponential smoothing with alpha = 0.2 Calculate MAD for the forecasts Here are the actual tabulated demands for an item for a nine-month period (January through September). Your supervisor wants to test two moving average forecasting methods to see which one was better over this period. Forecast April through September using a three-month moving average and calculate MAD for the forecasts. Forecast May through September using a four-month moving average and calculate MAD for the forecasts. The following tabulations are actual sales of units for six months, (assume F_1 = A_1) Calculate forecasts for the remaining five months using simple exponential smoothing with alpha = 0.2 Calculate MAD for the forecasts