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Unformatted text preview: process is 60/8 = 7.5 dozens per hour . 2. On average, 45 customers enter Izzys Ice Cream each hour. Also, on average, it takes each customer at total of six minutes to get his or her ice cream. a. ( 20 points ) How many customers, on average, are there at Izzys Ice Cream? Answer: Customers at Izzy's Ice Cream =WIP = Throughput Rate " Throughput Time = = 45 customers/hour " 6 minutes = 4.5 customers b. ( 20 points ) Izzy has invested in additional advertising in order to increase his customer traf-fic to 60 per hour, on average. Moreover, Izzy wants to have only four customers, on average, in his store. How much less time, on average, would it then need to take a customer to get his or her ice-cream? Answer: Time to get his/her ice cream= Throughput Time = WIP Throughput Rate = = 4 customers 60 customers/hour = 4 minutes , or two minutes faster....
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- Spring '07