A shop owner uses a reorder point approach to restocking a certain ravv material. Lead time is 6 days. Usage of the material is normally distributed with a mean of 80 pounds per day and a standard deviation of 6 pounds. When should the raw material be reordered if the acceptable risk of a stockout is 4% (Customer service level is 96%)? (Hint: You need to calculate the standard deviation during the Leadtime