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Calculate (a) MAD and (b) MSE for the following forecast versus actual sales figures: Forecast Actual b) MSE = 90 82 106 122 138

Calculate (a) MAD and (b) MSE for the following forecast versus actual sales figures: Forecast Actual b) MSE = 90 82 106 122 138 102 126 138 a) MAD= (round your response to one decimal place). (round your response to one decimal place).

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