1. Weighted moving average (WMA) forecast For this item you need to decide the appropriate weights to use and the appropriate number of data points to use to conduct the weighted moving average forecast for Porsche 911s. 25 32 15 18 40 29 January February March April May June July August September October November December 12 18 42 39 45 36 a. How many time periods will you include in your WMA? Justify your answer. b. What are the weights assigned to the time periods? Justify your answer c. Complete the table of forecasts using the values you decided for parts a and b. 1. Weighted moving average (WMA) forecast For this item you need to decide the appropriate weights to use and the appropriate number of data points to use to conduct the weighted moving average forecast for Porsche 911s. 25 32 15 18 40 29 January February March April May June July August September October November December 12 18 42 39 45 36 a. How many time periods will you include in your WMA? Justify your answer. b. What are the weights assigned to the time periods? Justify your answer c. Complete the table of forecasts using the values you decided for parts a and b