Demand for a Product Is Relatively Constant at Five Units

Essay

Demand for a product is relatively constant at five units per day.Lead time for this product is normally distributed with a mean of ten days and a standard deviation of three days.
(a)What reorder point provides a 50 percent service level?
(b)What reorder point provides a 90 percent service level?
(c)If the lead time standard deviation can be reduced from 3 days to 1,what reorder point now provides 90 percent service? How much is safety stock reduced by this change?