Data collected on the yearfy regintrations for a Six Sigma seminar at the Quality College are shown in the following table: This exersise contains only ports a and b. a) Using a 3year moving averege, the ferecastod regiatrations (in thousands) for years 4 through 12 are (round your responses to one deoimal place): b) Using a 3 -year weighted moving werege in which the regintrations 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 forecasied registrations (in thousands) for years 4 through 12 are (round your responses to one decinal place)