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Average and the standard deviation of demand

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Nationwide Auto Parts uses a periodic review inventory control system for one of its stock items. The review interval is 10 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 250 units and a standard deviation of 50 units. Refer to the standard normal table1 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.)

The standard deviation of demand is ----- units. ?(Enter your response rounded to two decimal? places.)

b. If the firm desires 98 percent stockout? protection, the target inventory level is ------- units. ?(Enter your response rounded to the nearest whole? number.)

c. If 375 units were in stock at the time of a periodic? review, ------ units should be ordered. ?(Enter your response rounded to the nearest whole? number.)

Reference no: EM132698441

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