Question: A company has used three different methods to forecast sales for the past five months. Use MAD and MSE to evaluate the performance of the

A company has used three different methods to forecast sales for the past five months. Use MAD and MSE to evaluate the performance of the three methods.
(a) Which forecasting method performed best? Do MAD and MSE give the same results?

(b) Which of these is actually the naÃ¯vemethod?

Method Method Method Period Actual 10 10 10 10 12 13 14 12 12 12 12

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