The Beta automobile dealer in Quezon Avenue area wants to accurately forecast demand for the Beta special edition car during the next month. Because the distributor is in Korea, it is difficult to send cars back or reorder if the proper number of cars is not ordered a month ahead. From sales records, the dealer has accumulated the following data for the past year.

Month(Past Yeas) Cars (Demand)

January 60

February 70

March 50

April 90

May 10

June 80

July 150

August 70

September 110

October 150

November 130

Required:

ACompute the three and five-month moving average forecast of demand.

BDetermine the weighted moving average.