Op Man HW 5 Chapters 14 & 18

3 february marc h april may j une forec as ts 90 93

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Unformatted text preview: forecasting models. Problem 18-6 The following tabulations are ac tual s ales of units for s ix months and a s tarting forec as t in J anuary . ACTUAL J anuary February Marc h April May J une FORECAST 104 100 123 92 79 100 84 a. Calc ulate forec as ts for the remaining fiv e months us ing s imple ex ponential s moothing with α = 0.3. February Marc h April May J une Forec as ts 90 93 102 99 93 b. Calc ulate the MAD for all the forec as ts , inc luding J anuary 's . (Round your answer to 1 decim al place.) MA D 16.2 ± 0.1 Explanation: a. Ft+1 = Ft + α(At − Ft), α = 0.3 Demand Forec as t J anuary 104 84 February 100 90 Marc h 123 93 April 92 102 May 79 99 J une 100 93 Total Abs olute Dev iation 20 10 30 10 20 7 97 b. Mean abs olute dev iation (MAD) = 97/6 = 16.2 http://e z to.mhe c loud.mc gr a w- hill.c om/hm.tpx? todo= pr intvie w 7/10 1/29/2014 6. Assignme nt Pr int Vie w awar d: 0.50 out of 0.50 points Problem 18-8 Ac tual demand for a produc t for the pas t three months was Three months ago Two months ago Las t m...
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This note was uploaded on 01/29/2014 for the course MAN 4504 taught by Professor Georgekyparisis during the Fall '09 term at FIU.

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