urgent please

1. The demand data of a certain product is shown below. Answer the following questions. 1 2 3 4 5 6 7 Period Demand Forecast 35 42 38 40 42 41 44 38 40 a. Forecast the demand for period 6, 7, 8 using 3 months weighted moving average with weights 0.20, 0.30, and 0.50. High weight is given to the last demand. b. Forecast the demand for period 6, 7, 8 using exponential smoothing with alpha=0.10. c. Forecast the demand for period 6, 7, 8 using double exponential smoothing with alpha=0.10 and beta=0.10. Assume initial trend estimate is 2