Chapter 5 Problems 1, 5, 6 & 9
1. a. S = k(YZ)/P
S= 100(11,000 x 1200)/20,000=66,000
b. S=100(11,000 x 1200)/17,500=75429
c. If you would get the data time series for S, Y, Z, & P, use the regression methods to guess k.
d. The sales that are in period t are a function of variables whose values are unknown prior to period t. Before you could guess St, Yt, Zt and Pt would have to be guessed first.
Year Demand 5yr MA 3 yr MA Exp Smo(w=9) Exp Smo(w=3)
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