Melanie is the manager of the Clean Machine car wash and has gathered the following information. Customers arrive at a rate of eight per hour according to a Poisson distribution. The car washer can service an average of ten cars per hour with service times described by an exponential distribution. Melanie is concerned about the number of customers waiting in line. She has asked you to calculate the following system characteristics.
Required:
a. Average system utilization.
b. Average number of customers in the system.
c. Average number of customers waiting in line.
Answers: 3
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