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5-16 Using MAD, determine whether the forecast in Problem 5-15or the forecast in the section...

5-16 Using MAD, determine whether the forecast in Problem 5-15 or the forecast in the section concerning Wallace Garden Supply is more accurate.

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Forecast error = Actual value – Forecast Value MAD = ∑ |Forecast error |/ n

MONTH ACTUAL SHED 3-MONTH MOVING SALES AVERAGE 3-MONTH ABSOLUTE DEVIATION 4-MONTH MOVING AVERAGE 4-MONTH ABSOLUTE DEVIATION 4

The 3-month moving average appears to be more accurate.

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