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OSCM 373 - Exam 3 questions well answered to pass
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OSCM 373 - Exam 3 questions well answered to pass
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OSCM 373 - Exam 3Why do we have queues?
A. It's polite to wait
B. So everybody gets a turn when a lot of people want to do the same thing at the same time
C. People like queues
D. Some countries do not have queues - correct answer ✔✔B. So everybody gets a turn when a lot of
people want to do the same thing at the same time
Customers arrive at a rate (λ) of 8 per hour (arrival pattern can be described with a Poisson distribution
with a mean of 8). Service representative requires an average of 6 minutes (1/μ) to assist a customer
(service time can be described with an exponential distribution with a mean of 6).
What is the average wait-time queue length?
A. 5.33
B. 48
C. 3.2
D. 4.8 - correct answer ✔✔C. 3.2
Customers arrive at a rate (λ) of 8 per hour. Each service representative requires an average of 6 minutes
to assist a customer. The system has an average queue length of 4 customer.
What is the average Wait-Time?
A. 4/6 minute
B. 1/2 minute
C. 30 minutes
D. 24 minutes - correct answer ✔✔C. 30 minutes
4/8=1/2 hour = 30 min
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