Please help solve 1,2,and 3

(=easy;=moderate;=advanced) For problems 1 through 3 , use the following time series data: 1. ) Develop a three-period moving average forecast for periods 13-15. 2. () Develop a two-period weighted moving average forecast for periods 12 through 15. Use weights of 0.7 and 0.3 , with the most recent observation weighted higher. 3. () Develop an exponential smoothing forecast (=0.25) for periods 11 through 15. Assume that your forecast for period 10 was 252