Please solve for b. Thank you!

Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table Year 1 40 2 60 3 50 4 50 5 90 6 80 7 60 8 90 9 120 10 16.0 11 15 0 4 6 11 Registrations (000) This exercise contains only parts and a) Using a 3-year moving average, the forecasted registrations (in thousands) for years 4 through 12 are (round your responses to one decimal place) Year 5 7 8 9 10 12 Forecast 50 53 6.3 7.3 7.7 77 123 143 b) Using a 3.your woighted 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 aro (round your responses to one decimal place) Year 4 5 6 7 8 9 10 11 12 Forecast 9