OPIM 1010 2010 Spring Extra Study Problems

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Unformatted text preview: 30 calls per hour from type 2 customers. It takes on average 2 minutes to service both kinds of calls. Process design 1: 6 employees handle type 1 calls; the other 6 employees handle type 2 calls Process design 2: 8 employees handle type 1 calls; 4 employees type 2 calls. Process design 3: 12 persons (cross‐trained) handle all calls. Which of the three process designs leads to the shortest (longest) average waiting time for a random incoming request? Q26 In the auto industry their inventory is often described in terms of “days‐of‐supply”, which is the number of days the current inventory would last at the current sales rate. For example, if a dealer has 20 cars and sells on average 1 car every other day (0.5 per day) then the dealer would have a 20 / 0.5 = 40 days‐of‐supply. Suppose a dealer has 80 days‐of‐supply. What is the dealer’s annual inventory turns? Assume 365 days per year. Q27 Home Solutions, a hardware retailer, is considering adding a Lava lamp to its assortment. Given its rental costs and the dimensions of this Lava lamp, it wo...
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## This note was uploaded on 05/28/2012 for the course OPIM 101 taught by Professor Lee during the Spring '08 term at UPenn.

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