6- Compute a weighted average forecast using a weight of 40 for the most recent period, .30 for the next most recent, .20 for the next, and .10 for the next (5 points) 6b-If the actual demand for period 6 is 39 , forecast demand for period 7 using the same weights as in part a. (5 points) 6- Compute a weighted average forecast using a weight of 40 for the most recent period, .30 for the next most recent, .20 for the next, and .10 for the next (5 points) 6b-If the actual demand for period 6 is 39 , forecast demand for period 7 using the same weights as in part a. (5 points)