Question: Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table: Year 1 2 3

Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table: Year 1 2 3 4 5 6 7 8 9 10 11 Registrations 46 45 10 8 7 9 12 14 15 (000) a. Develop a 3-year moving average to forecast registrations from year 4 to year 12. What is the forecast? 13.67 What is the MAD? (Select) b. Estimate demand again for years 4 to 12 with a 3-year weighted moving average in which registrations in the most recent year are given a weight of 2, and registrations in the other 2 years are each given a weight of 1. What is the forecast? [Select] What is the MAD? [Select) c. Use exponential smoothing with (a - 47), assume the initial period forecast is 5. What is the forecast for the next period? 13.33 What is the MAD? [Select] d. Based on Error Analysis, which of the forecasting methods seems better? Select)

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