11. (**) Your manager has come to you with the following data, showing actual demand for five periods and forecast results for two different models. He has asked you to tell him which forecast model is “best” and why. Using MFE and MAD, tell him which model is best and why.

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ACTUAL PERIOD DEMAND FORECAST MODEL 1 FORECAST MODEL 2 8 248 364 486 9 357 280 341 10 423 349 295 11 286 416 364 12 444 354 380