1.) Average demand during protection interval is _____ units

2.) the standard deviation of demand is _____ units

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 5 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 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 units. (Enter your response as an integer.)