Question: 5-15 Develop a 4-month moving average forecast for Wallace Garden Supply, and compute the MAD. A 3-month moving average forecast was developed in the section

5-15 Develop a 4-month moving average forecast

5-15 Develop a 4-month moving average forecast for Wallace Garden Supply, and compute the MAD. A 3-month moving average forecast was developed in the section on moving averages in Table 5.2 0. MONTH 3-MONTH MOVING AVERAGE ACTUAL SHED SALES 10- 12 13 January February March April May June 16 + July 19 23 26 30 28 + (10 + 12 + 13)/3 = 11.67 (12 + 13 + 16)/3 = 13.67 (13 + 16 + 19)/3 = 16.00 (16 + 19 + 23)/3 = 19.33 (19 + 23 + 26)/3 = 22.67 (23 + 26 + 30)/3 = 26.33 (26 + 30 + 28)/3 = 28.00 (30 + 28 + 18)/3 = 25.33 (28 + 18 + 16)/3 = 20.67 (18 + 16 + 14)/3 = 16.00 August September October November December January 18 16 14 Table 5.2 Wallace Garden Supply Shed Sales

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