1. A queue of customers will form if the demand rate is greater than the process capacity and customers are willing to wait.
True
False
2. What is the key assumption for the single-server queue model?
The average interarrival time is greater than the average process time.
The average interarrival time is less than the average process time.
The capacity of the server is less than the demand rate.
The flow rate is greater than the capacity.
3 "The administration finally increases the budget for the computer lab after numerous student protests, and the lab hires a new technician, Speedy McQueen. Unfortunately, he realizes that he will get paid per hour and not per student, so he works at the same rate as the first technician. What is the average waiting time per student now?"
the same as before
half the amount as before
less than half the amount as before
impossible to tell without additional information
4 "In the previous example, what is the average number of students in the line? "
2.25 students
5 students
15 students
20 students
5. There are 4 servers in the checkout area. The interarrival time of customers is 2 minutes. The processing time is 5 minutes. What is the utilization of the servers?
2.5
0.625
0.4
0.1
6. "During the two hours of the morning rush from 8 a.m. to 10 a.m., 100 customers per hour arrive at the coffee shop. The coffee shop has a capacity of 80 customers per hour. How long does the customer arriving at 10 a.m. have to wait to be served? "
2 hours
1 hour
0.5 hour
0.25 hour