Need help with the bottom half of question.

Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table 4 8 Year Registrations (000) 1 3.0 2 6.0 3 3.0 5 11.0 6 70 7 7.0 9 11.0 10 14.0 11 170 50 10.0 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 (round your responses to one decimal place) Year 4 5 6 7 8 9 10 11 12 Forecast 4.7 6.3 77 83 8.0 93 11.7 140 4.0 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 (round your responses to one decimal place) 6 7 9 8 10 11 4 5 12 Year Forecast