Question: The answer is D (30). Please explain step by step without using Excel. 27. Suppose a model results in a MAPE of 20% and that

The answer is D (30). Please explain step by step without using Excel.

27. Suppose a model results in a MAPE of 20% and that the demand forecast for a certain quarter is equal to 120. What is a good estimation for the standard deviation of the prediction error, under the assumption that the prediction errors follow a Normal distribution? A 20 B 24 25 D 30 (E) The correct answer is not listed

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