KID ing Wallace Garden Supply is more accurate. :5-17 Data collected on the yearly demand for 50-pound bags of fertilizer at Wallace Garden Supply are shown in the following table. Develop

a 3-year mov- ing average to forecast sales. Then estimate demand again with a weighted moving average in which sales in the most recent year are given a weight of 2 and sales in the other 2 years are each given a weight of 1. Which method do you think is better? YEAR 1 2 3 4 5 6 7 DEMAND FOR FERTILIZER (1,000s OF BAGS) 4 6 4 5 10 8 7 (Continued on next page)/nYEAR 8 9 10 11 DEMAND FOR FERTILIZER (1,000s OF BAGS) 9 12 14 15 OIX