Question: Two independent methods of forecasting based on judgment and experience have been prepared each month for the past 10 months. The forecasts and actual sales

Two independent methods of forecasting based on judgment and experience have been prepared each month for the past 10 months. The forecasts and actual sales are as follows:

Month	Sales	Forecast 1	Forecast 2
1	835	795	800
2	835	835	825
3	845	780	850
4	850	790	835
5	780	785	790
6	825	785	776
7	815	805	810
8	830	830	815
9	790	785	800
10	825	840	795

a. Compute the MSE and MAD for each forecast. (Round your answers to 2 decimal places.)

b. Compute MAPE for each forecast. (Round your intermediate calculations to 5 decimal places and final answers to 4 decimal places.)

c. Prepare a naive forecast for periods 2 through 11 using the given sales data. Compute each of the following; (1) MSE, (2) MAD, (3) tracking signal at month 10, and (4) 2s control limits. (Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.)

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