Refer to Exercise 7.62. Find the number of customers n
Chapter 7, Problem 63E(choose chapter or problem)
Problem 63E
Refer to Exercise 7.62. Find the number of customers n such that the probability that the orders of all n customers can be processed in less than 2 hours is approximately .1.
Reference
The times that a cashier spends processing individual customer’s order are independent random variables with mean 2.5 minutes and standard deviation 2 minutes. What is the approximate probability that it will take more than 4 hours to process the orders of 100 people?
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