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Nationwide Auto Parts uses a periodic review inventory control system for one of its stock items. The review interval is 12 weeks, and the lead time for receiving the materials ordered from its wholesaler is 4 weeks. Weekly demand is normally distributed, with a mean of 125 units and a standard deviation of 25 units. Refer to the standard normal table LOADING... for z-values. a. What is the average and the standard deviation of demand during the protection interval? The average demand during the protection interval is nothing units. (Enter your response as an integer.)
Periodic review system also called fixed interval reorder system has four original economic order quantity assumptions: -