Calculate the mean absolute deviation for the forecasts

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Reference no: EM131630849

Historical demand for a product is as follows:

June (150)

July (165)

August (175)

September (140)

October (155)

November (155)

* Calculate a weighted moving average forecast for December using weights of 0.4, 0.3 and 0.3.

* Using single exponential forecast with alpha = 0.3 and a starting forecast for June of 155 calculate the forecast for the other 5 months

* Calculate the mean absolute deviation (MAD) for the forecasts.

* What effect does changing the alpha to 0.4 have on the forecasts and the MAD?

Explain the differences. Be sure to demonstrate your work and provide a brief interpretation. (150 words maximum)

Reference no: EM131630849

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