Help Save & Exit Subir Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. Return to question 3 In this problem. you are to test the validity of your forecasting model. Here are the forecasts for a model you have been using and the actual demands that occurred: FORECAST Ints 740 WEEK 1 2 3 4 5 6 820 920 920 ACTUAL 870 970 1,020 870 870 1.020 970 945 6. Use the method stated in the text to compute the MAD and tracking signal for each week (Negative values should be indicated by a minus sign. Round your "Tracking Signal to 1 decimal place and all other answers to the nearest whole number) Week Forecast Actual Deviation 740 2 Answer is complete but not entirely correct. Running Sum Absolute Sum of Mean of Forecast Deviation Absolute Absolute Errors Deviation Deviation (130) 130 130 130 (280) 280 205 205 380 263 263 (330) 330 280 280 230 2703 270 (305) 305 276 276 3 870 970 1,020 870 870 1,020 (380) Tracking Signal (1.0) (14) (1.4) (12) (0.9) (1.1) (130) (150) (100) 50 100 (75) 820 920 920 970 945 4 5 (230) 6 b. Decide whether the forecasting model you have been using is giving reasonable results. MacBook PIDA