Question: Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table. 1 2 3 4

Data collected on the yearly registrations for a

Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table. 1 2 3 4 5 6 7 8 9 10 11 Year Registrations (000) 3 7 3 5 11 7 6 9 11 12 17 Demand 18 17- 16- 15- 14 13 12 11- 10 9- This exercise contains only part c. 8- c) The graph to the right shows the actual registrations, registrations forecasted using a 3-year moving average, and registrations forecasted using a 3-year weighted moving average. Which method seems to be able to forecast better? (Refer to the legend or hover your mouse over any plot.) 7- 6 5- 4- 3- O A. A 3-year moving average is significantly better. OB. A 3-year weighted moving average is significantly better. O C. The forecasts are about the same. A 2 1 9 10 11 12 Year Blue Line = Actual Registrations Red Line = 3-year Moving Average Pink Line = 3-year Weighted Moving Average

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