生产计划与控制2010至2011学年第1学期试卷A答案 Answer 1 a)and b) Forecast Period Actual et (86+75)/2=80.5 3 72 +8.5 (75+72)/2=73.5 4 83 -9.5 etc 77.5 5 132 -54.5 107.5 6 65 42.5 98.5 ) 110 -11.5 c)MAD=25.3 MSE =1014.25 MAPE = =28.0757 Answer 2 入=280 c =2.40 K =45 I=.20 a)Q*= 2K (2)(45)(280) =229 (.2)(2.40) b)T=Q*/=229/280=.8179yrs.(=9.81 months) c)G*=V2Kh=N(2)(45)(280)(.2)2.40)=$109.98 d) 229 3 wks R 9.82m0s.生产计划与控制 2010 至 2011 学年第 1 学期试卷 A 答案 Answer 1 a) and b) Forecast Period Actual et (86 + 75)/2 = 80.5 3 72 +8.5 (75 + 72)/2 = 73.5 4 83 -9.5 etc 77.5 5 132 -54.5 107.5 6 65 42.5 98.5 7 110 -11.5 c) MAD = 25.3 MSE = 1014.25 MAPE = 100 1 n ei Di        = 28.0757 Answer 2  = 280 c = 2.40 K = 45 I = .20 a) Q* = 2K h  (2)(45)(280) (.2)(2.40)  229 b) T = Q*/ = 229/280 = .8179 yrs. (= 9.81 months) c) G* = 2Kh = (2)(45)(280)(.2)(2.40) = $109.98 d) 229 R 3 wks 9.82 mos