Sales of Cool-Man air conditioners have grown steadily during the past 5 years: Year 1 2 3 4 5 6 7 8 9 10 11 Demand for Fertilizer (1,000 bags) d) e) f) 4 6 4 5 10 8 7 9 12 14 15 a) b) The sales manager had predicted, before the business started, that year I's sales would be 410 air conditioners. Using exponential smoothing with a weight of develop forecasts for years 2 through 6. Using smoothing constants of 0.6 and 0.9, develop forecasts for the sales of Cool-Man air conditioners. What effect did the smoothing constant have on the forecast for Cool-Man air conditioners? Which smoothing constant gives the most accurate forecast? c) Use a three-year moving average forecasting model to forecast the sales of Cool-Man air conditioners. Using the trend projection method, develop a forecasting model for the sales of Cool-Man air conditioners. Would you use exponential smoothing with a smoothing constant of 0.3, a 3-year moving average, or a trend to predict the sales of Cool-Man air conditioners?

Garcia's Garage desires to create some colorful charts and graphs to illustrate how reliably its mechanics "get under the hood and fix the problem." The historic average for the proportion of customers that return for the same repair within the 30-day warranty period is 0.09. Each month, Garcia tracks 130 customers to see whether they return for warranty repairs. The results are plotted as a proportion to report progress toward the goal. If the control limits are to be set at three standard deviations on either side of the goal, determine the control limits for this chart. In March, 4 of the 130 customers in the sample group returned for warranty repairs. Is the repair process in control? The UCL, equals 0.165 and the LCLp equals 0.015. (Enter your responses rounded to three decimal places.) Is the repair process in control? O A. The sample proportion is outside the control limits, so the repair process is in control. O B. The sample proportion is within the control limits, so the…

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Garcia's Garage desires to create some colorful charts and graphs to illustrate how reliably its mechanics "get under the hood and fix the problem." The historic average for the proportion of customers that return for the same repair within the 30-day warranty period is 0.09. Each month, Garcia tracks 130 customers to see whether they return for warranty repairs. The results are plotted as a proportion to report progress toward the goal. If the control limits are to be set at three standard deviations on either side of the goal, determine the control limits for this chart. In March, 4 of the 130 customers in the sample group returned for warranty repairs. Is the repair process in control? The UCL equals and the LCL, equals (Enter your responses rounded to three decimal places.)