How many computer repair troubleshooters should be on duty from 8:00 p.m. to midnight if total demand during that period is 15 calls? The service rate is five (5) calls per hour and the target utilization is 90%.
A) Two
B) Three
C) Four
D) Five

Question

Quizplus · Accepted Answer

The target utilization is 90%, so the service rate should be 90% of the total demand. The total demand is 15 calls, so the service rate should be 15 * 0.9 = 13.5 calls per hour. The service rate is 5 calls per hour, so the number of computer repair troubleshooters should be 13.5 / 5 = 2.7. Since we cannot have a fraction of a computer repair troubleshooter, we round up to 3.

How Many Computer Repair Troubleshooters Should Be on Duty from 8:00