priscillavaladez1112
27.06.2019 •
Mathematics
Nationwide auto parts uses a periodic review inventory control system for one of its stock items. the review interval is 4 weeks, and the lead time for receiving the materials ordered from its wholesaler is 1 weeks. weekly demand is normally distributed, with a mean of 150 units and a standard deviation of 30 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 nothing units. (enter your response as an integer.)
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Ответ:
9x- 7i > 9x-21u
9x-9x-7i > 21u
-7i > 21u
-i > 21u/3
-i > 3u
i < -3u