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 (000) 4.0 6.0 4.0 5.0 10.0 8.0 7.0 9.0 12.0 14.0 15.0
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)?:
?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)?: