Question: In this problem, you are to test the validity of your forecasting model. Here are the fore-casts for a model you have been using and

In this problem, you are to test the validity of your forecasting model. Here are the fore-casts for a model you have been using and the actual demands that occurred:

Use the method stated in the text to compute MAD and tracking signal. Then decide whether the forecasting model you have been using is giving reasonableresults.

WEEK FORECAST ACTUAL 900 1,000 1,050 900 900 1,100 800 950 950 5 1000 975 2

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