Question: An operation analyst is forecasting this year's demand for one of his company's products based on the following historical data: Year Quantity Sold Forecast 4

An operation analyst is forecasting this year's demand for one of his company's products based on the following historical data:

Year Quantity Sold Forecast

4 years ago 14583 13421

3 years ago 15735 15597

2 years ago 16459 16120

Last year 17364 17766

What was the mean absolute percent error for these forecasts?

a. 0.0347715 b. 2041 c. 382808 d. 3.305

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