Campustown Dry Cleaners has a variable demand. The daily demand ranges from 100 to 140 customers a day with an average of 5 clothing items. The average daily demand is 115 customers. The dry cleaners operates 10 hours a day. Each order takes approximately 5 minutes. What is the average customer waiting time in minutes? The manager has decided that the waiting tome is too long and has increased the workday to 12 hours. What is the waiting time now? Will the customers be any happier?

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A: Solution is given:

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A:

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A: Given Data: Total=26 n(D)=13 n(C)=9 n( either)=5

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