Sales of Cool-Man air conditioners have grown steadily during the past 5 years:
Year Sales
1 440
2 465
3 520
4 573
5 586
6 ?
1. The sales manager had predicted, before the business started, that year 1’s sales would be 410 air conditioners.
Using exponential smoothing with a weights of a = 0.30, 0.60, and 0.90 develop forecasts for years 2 through 6.
2. What effect did the smoothing constant have on the forecasts for Cool-Man air conditioners?
3. Which smoothing constant gives the most accurate forecast?
4. Use a three-year moving average forecasting model to forecast the sales of Cool-Man air conditioners.
5. Use the trend projection method to develop a forecast for the sales of Cool-Man air conditioners.
6. Which of the five models you developed was the most accurate (best)?