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

An operation analyst is forecasting this year's demand for one of his company's products based on the following historical data: (4 year ago Quantity sold was 1093), (3 year ago Quantity sold was 1161 ), (2 year ago Quantity sold was 1754 ) and the last year Quantity sold was 1991 . The previous trend line had predicted 1219 for three years ago, 1289 for two years ago and 1358 for last year. What was the mean squared error (MSE) for these forecasts? a. 206759.33 b. 0.20999999 c. 21.1 d. 385.32999

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