Need to help solve this problem and show the formula. Thanks

PROBLEMS 1. () Develop a three-period moving average forecast for periods 13-15 (=easy; *moderate; **advanced) Problems for Section 9.5: Time Series Forecasting Models 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. For Problems 1,through 3, use the following time series data: 3 arad 2 paad (0.7 PERIOD DEMAND 3. () Develop an exponential smoothing forecast (a 0.25) for periods 11 through 15, Assume that your forecast for period 10 was 252. 248 10 370 11 12 is)ox) 12 13 424 13 (on/s i4CO42+13)/3 286 3 Cave )+(ves) 444 14 PROBLEMS 1. () Develop a three-period moving average forecast for periods 13-15 (=easy; *moderate; **advanced) Problems for Section 9.5: Time Series Forecasting Models 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. For Problems 1,through 3, use the following time series data: 3 arad 2 paad (0.7 PERIOD DEMAND 3. () Develop an exponential smoothing forecast (a 0.25) for periods 11 through 15, Assume that your forecast for period 10 was 252. 248 10 370 11 12 is)ox) 12 13 424 13 (on/s i4CO42+13)/3 286 3 Cave )+(ves) 444 14