Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table Year 10 120 D 11 120 4 7 8 1 2 3 4 5 6 7 9 Registrations (000) 5.0 50 30 6.0 110 90 70 110 13.0 This exercise contains only parts a and b a) Using a 3-year moving average the forecasted registrations (in thousands) for years 4 through 12 are found your responses to one decimal pace); Year 5 6 9 10 11 12 Forecast b) Using a 3 year weighted moving average in which the 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. the forecasted registrations (in thousands) for years 4 through 12 are fround your responses to one decimal place Year 5 12 Forecast 6 7 8 9 10 11