Question: 22. A linear equation for the trend in demand data was found to be Y, = 1,524 + 5.2X, where X is the number of

22. A linear equation for the trend in demand

22. A linear equation for the trend in demand data was found to be Y, = 1,524 + 5.2X, where X is the number of the month as designated in the table that follows. Year 2 Year! MONTH ACTUAL NUMBER DEMAND MONTH NUMBER ACTUAL DEMAND MONTH January February March April May June July August September October November December 1 2 3 4 5 6 7 8 9 10 11 12 1,419 1,341 1,275 1,353 1,438 1,547 1,688 1,755 1,862 1,782 1,670 1,576 13 14 15 16 17 18 19 1,495 1,390 1,319 1,420 1,506 1,627 1,719 1,802 1,921 1,851 1,736 1,659 20 21 22 23 24 a. Project the trend values for each month and determine the multiplicative index for each of the 24 months. b. Determine the additive index for each of the 24 months. c. Is it obvious whether an additive or multiplicative model is more appropriate

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