a Perform a 2period, 3period and 4period moving average b Forecast sales for periods 85, 86, 87, and 88 c Using the data from periods 1 to 84, compute for the MAD, MAPE, MSE, RMSE, Based on your result, how many periods in your moving average modeling will give the best result Why 2 Forecast production by using exponential smoothing method What is the optimal alpha What is the lowest possible MSE Compute using optimization with the use of Solver in Excel Compute for forecasts for periods