Use the following data to answer Questions 13 - 14. Past period Demand June 45 July 55 Aug. 57 Sept. 48 Oct. 50 13) Compute a weighted moving average forecast for November. Use the following weights: 0.5 for Oct., 0.2 for Sept., and 0.3 for August. a. 51.7 b. 51.0 c. 48.18 d. 52.4 14) Compute an exponential smoothing forecast for November. Assume forecast for September is 46.5 and use a smoothing constant equal to 0.6. a. 51.0 b. 48.18 c. 51.7 d. 48.96