Op Man HW 5 Chapters 14 & 18

20 and a september forec as t 54 c alc ulate a forec

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Unformatted text preview: ing Objective: 18­02 Evaluate demand using quantitative forecasting models. Problem 18-13 His toric al demand for a produc t is as follows : April May J une J uly Augus t September DEMAND 68 63 88 68 93 88 http://e z to.mhe c loud.mc gr a w- hill.c om/hm.tpx? todo= pr intvie w 9/10 1/29/2014 Assignme nt Pr int Vie w a. Us ing a s imple four­month mov ing av erage, c alc ulate a forec as t for Oc tober. (Round your answer to 2 decim al places.) Forec as t for Oc tober 84.25 ± 1% b. Us ing s ingle ex ponential s moothing with α = 0.20 and a September forec as t = 54, c alc ulate a forec as t for Oc tober. (Round your answer to 2 decim al places.) Forec as t for Oc tober 60.80 ± 1% c. Us ing s imple linear regres s ion, c alc ulate the trend line for the his toric al data. Say the X ax is is April = 1, May = 2, and s o on, while the Y ax is is demand. (Round your intercept value to the nearest whole num ber and slope value to 2 decim al places.) Y = 61 ± 1% + 4.86 ± .05 t d....
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