The Raja-Jee motorcycle dealer in the Rawalpindi area wants to be able to forecast accurately the demand for the Road Prince motorcycle during the next month. From sales records, the dealer has accumulated the data in the following table for the past year.

a)Compute a three-month moving average forecast of demand for the next three months (January, February, and March).

b)Compute a three-month weighted moving average forecast of demand for the next three months (January, February, and March).

c)Compute the forecast of demand by using the exponential smoothing method (?=0.05).

d)Compare the three forecasts computed in parts (a), (b), and (c) using MAD, MSE, and MAPE.

e)Describe your decision, which method of the forecast is suitable for the dealer.