5.21. Sales of Cool-Man air conditioners have grown steadily during the past 5 years as shown in table 5.21. The sales manager had predicted, before the business started, that year 1's sales would be 410 air conditioners. Using exponential smoothing with a weight of α = 0.30, develop forecasts for years 2 through 6. What is the forecast for year 6?
a. 565.4 b. 584 c. 581.4 d. 522 e. 521.8 f. 573.5 g. 622.8
5.22.a. Using exponential smoothing constants of 0.6, develop forecasts for the sales of Cool-Man air conditioners (see Problem 5.21). What is the forecast for year 6?
a. 565.4 b. 584 c. 581.4 d. 522 e. 521.8 f. 573.5 g. 622.8
5.22.b. Using exponential smoothing constants of 0.9, develop forecasts for the sales of Cool-Man air conditioners (see Problem 5.21). What is the forecast for year 6?
a. 565.4 b. 584 c. 581.4 d. 522 e. 521.8 f. 573.5 g. 622.8
5.23. See Problems 5.21. and 5.22. Based on Mean Absolute Deviation (MAD), which smoothing constant gives the most accurate forecast? * a. Exponential smoothing with smoothing constant = 0.3 b. Exponential smoothing with smoothing constant = 0.9 c. Exponential smoothing with smoothing constant = 0.6 d. They performed equally well
5.24. Use a three-year moving average forecasting model to forecast the sales of Cool-Man air conditioners (see Problem 5.21). What is the forecast for year 6? * a. 521.8
b. 584 c. 522 d. 521. e. 565.4 f. 573.5 g. 622.8 h. 555
5.24. Use a three-year moving average forecasting model to forecast the sales of Cool-Man air conditioners (see Problem 5.21). What is the forecast for year 6? a. 565.4 b. 584
c. 581.4 d. 522 e. 521.8 f. 573.5 g. 622.8
5.26. Based on Mean Absolute Deviation (MAD), would you use exponential smoothing with a smoothing constant of 0.3, a 3-year moving average, or a trend line to predict the sales of Cool-Man air conditioners? Refer to Problems 5.21, 5.24, and 5.25. * a. exponential smoothing with a smoothing constant of 0.3 b. a 3-year moving average c. a trend line
d. they are equally good