Question: 4. Two independent methods of forecasting based on judgment and experience have been prepared each month for the past 10 months. The forecasts and actual

4. 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 Forecast 1 2 1 660 661 659 2 679 675 677 I 3 684 680 682 4. 670 674 688 5 658 660 664 5 6 662 658 660 650 651 649 NO 665 661 665 9 676 674 678 10 680 678 678 a. Compute the MSE and MAD for each forecast. Does either forecast seem superior? Explain. b. Compute MAPE for each forecast. 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. How do the naive results compare with the other two forecasts

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