a) Forecast the demand for period 8 using double exponential smoothing with alpha= 0.10and beta= 0.15. Assume initial trend estimate is 2..

b) Forecast the demand for period 8 using nave method.

1. The demand data of a certain product is shown below. Answer the following questions. 2 3 4 5 7 Period Demand Forecast 1 35 42 38 40 42 6 41 40 44 40 42