answers - Dev. Sum of Abs. Dev. TS=RSF E/MAD Abs. Dev. Sum...

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Answes to Inclass Exercise (Forecasting) Q1 week demand Forecast 1 100 2 140 3 190 4 150 5 157 Q2 week demand Forecast 1 100 100 2 140 100 3 190 120 4 150 155 5 152.5 Q3 Month Actual demand 3-month moving SES (alpha=0.3) 1 110 2 130 3 150 150 assume F3=D3 4 170 130 150 5 160 150 156 6 180 160 157 7 140 170 164 8 130 160 157 9 140 150 149 D F D-F 1 110 2 130 3 150 4 170 130 40 40 5 160 150 10 50 6 180 160 20 70 7 140 170 -30 40 8 130 160 -30 10 9 140 150 -10 0 D F D-F 1 110 Cumulative Deviation (RSFE) Cumulative Deviation (RSFE)
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2 130 3 150 4 170 150 20 20 5 160 156 4 24 6 180 157 23 47 7 140 164 -24 23 8 130 157 -27 -4 9 140 149 -9 -13 These two forecasting techniques produce similar results when evaluated by tracking
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MAD* 40 40 40 1.00 10 50 25 2.00 20 70 23 3.00 30 100 25 1.60 30 130 26 0.38 10 140 23 0.00 MAD* Abs.
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Unformatted text preview: Dev. Sum of Abs. Dev. TS=RSF E/MAD Abs. Dev. Sum of Abs. Dev. TS=RSF E/MAD 20 20 20 1.00 4 24 12 2.00 23 47 16 3.00 24 71 18 1.29 27 98 20-0.21 9 106 18-0.72 g signal. Both of them perform okey in the sense they are within the control limit of [-3, +3]. There is no eviden nce of consistently overestimating or understimating. D F D-F MAD* 1 110 2 130 3 150 4 170 130 5 160 150 6 180 160 7 140 170 8 130 160 9 140 150 Cumulat ive Deviatio n (RSFE) Abs. Dev. Sum of Abs. Dev. TS=RSF E/MAD...
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This homework help was uploaded on 04/18/2008 for the course MGBU 3438 taught by Professor Dr.sarahj.wu during the Spring '08 term at Fordham.

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answers - Dev. Sum of Abs. Dev. TS=RSF E/MAD Abs. Dev. Sum...

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