The Hartley-Davis motorcycle dealer in the Minneapolis- St. Paul area wants to be able to forecast accurately the demand for the Roadhog Super motorcycle during the next month. From sales records, the dealer has accumulated the data in the following table for the past year.
Month Motorcycle Sales
January = 9
February = 7
March = 10
April = 8
May = 7
June = 12
July = 10
August = 11
September = 12
October = 10
November = 14
December = 16
1) Compute a three-month moving average forecast of demand for April through January (of the next year).
2) Compute a five-month moving average forecast for June through January.