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Quantitative analysis
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Quantitative analysis
Quantitative analysis
6-30 After analyzing the costs of various options for ob- taining brackets, Ross White (see Problems 6-27 through 6-29) recognizes that although he knows that the lead time is 2 days and the demand per day averages 10 units, the demand during the lead time often varies. Ross has kept very careful records and has determined that lead time demand is normally distributed with a standard deviation of 1.5 units. (a) What Z value would be appropriate for a 98% service level? (b) What safety stock should Ross maintain if he wants a 98% service level? (c) What is the adjusted ROP for the brackets? (d) What is the annual holding cost for the safety stock if the annual holding cost per unit is $1.50?
6-30 After analyzing the costs of various options for ob- taining brackets, Ross White (see Problems 6-27 through 6-29) recognizes that although he knows that the lead time is 2 days and the demand per day averages 10 units, the demand during the lead time often varies. Ross has kept very careful records and has determined that lead time demand is normally distributed with a standard deviation of 1.5 units. (a) What Z value would be appropriate for a 98% service level? (b) What safety stock should Ross maintain if he wants a 98% service level? (c) What is the adjusted ROP for the brackets? (d) What is the annual holding cost for the safety stock if the annual holding cost per unit is $1.50?
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