Demand for a product and the forecasting department's forecast (naïve model) for a product are shown below.
a.Compute the mean absolute error.
b.Compute the mean squared error.

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The Answer of Demand for a product and the forecasting department's forecast (naïve model) for a product are shown below.
a.Compute the mean absolute error.
b.Compute the mean squared error.

Demand for a Product and the Forecasting Department's Forecast (Naïve