answers for midterm2-2008s

answers for midterm2-2008s - Part I 1 2 3 4 5 6 7 8 9 10 11...

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Part I Form A Form B 1 D B 2 C E 3 B A 4 C E 5 B A 6 C B 7 D E 8 B C 9 A C 10 D A 11 B A 12 A E 13 C B 14 E D 15 B D 16 B D 17 B C 18 E C 19 E E 20 C B Part II Week Forecast Actual Deviation RSFE Abs.Dev. MAD TS 1 650 700 50 50 50 50 50 1 2 800 900 100 150 100 150 75 2 3 900 950 50 200 50 200 66.67 3 4 800 900 100 300 100 300 75 4 5 1000 1100 100 400 100 400 80 5 6 900 1000 100 500 100 500 83.33 6 (a) shown in the table. (b) It is not giving reasonable forecasts. TS goes out of the normal boundary [-3, +3]. Sum of Abs.Dev.
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In addition, positive TS implies that forecastes are consistently underestimated. (c) We can try to use a larger alpha value to make the forecasts follows demand better so as to reduce the forecasting error. Jan Feb Mar Apr Demand 2,500 5,500 4,000 3,000 Beg. inv. 500 1,520 -460 -940 Net req. 2,000 3,980 4,460 3,940 Workers 11 11 11 11 labor cost 70400 3520 3520 3520 3520 1,520
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answers for midterm2-2008s - Part I 1 2 3 4 5 6 7 8 9 10 11...

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