Given the following information: Expected demand during a lead time = 400 units Standard deviation of demand during a lead time = 28 units Demand during a lead time is distributed Normally: Refer: z-values. a. Determine the safety stock needed to attain a 5 percent risk of stockout during a lead time. (Round the final answer to the nearest whole number.) b. Would a stockout risk of 10 percent require more or less safety stock?

10% stock out risk is smaller/larger z more/less SS