Listed below is the history of demand for a product.
Forecast for May: 100
Actual May: 150
Actual June: 155
Actual July: 140
Actual August: 153
Using single exponential smoothing with an alpha of .10, what would the smoothed average be at the end of August?
答案解析
解析：
100 + .1(150-100) = 105 then (end of May)
105 + .1(155-105) = 110 then (end of June)
110 + .1(140-110) = 113 then (end of July)
113 + .1(153-113) = 117 (end of August)
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