pratinta Based upon the following historical data, answer the following questions: Calculate the weighted three-month moving average forecast using weights of wi=0.50.2 -0.30, and w3 -0.20 for periods 4 to 12. Use MSE and MAPE to measure accuracy of the forecasting model. Which of the two forecast accuracy methods in question b) would you prefer and why? Week Actual Demand Week Actual Demand 1 46 7 82 2 50 8 75 3 S2 9 4 58 10 84 5 68 11 86 6 12 80 78 70