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Roofing and Profiles (Fiji) Pte Ltd has experienced the following demand for its roofing and cladding product range: Period 1 2 3 4 5

Roofing and Profiles (Fiji) Pte Ltd has experienced the following demand for its roofing and cladding product range: Period 1 2 3 4 5 6 7 8 Units 56 61 55 70 66 65 72 75 Develop an exponential smoothing forecast using a = 0.40 and an adjusted exponential smoothing forecast using a = 0.40 and B 0.20. Compare the accuracy of the two forecasts using MAD and cumulative error.

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