A company has used three different methods to forecast sales for the past five months. Use MAD

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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?

Period Actual Method A Method B Method C 1 12 10 7 8 2 7 11 11 12 3 13 12 10 7 4 8 13 6 13 5 10 14 13 8

b. Which of these is actually the naïve method?

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