how many computer repair troubleshooters should be on duty from 6:00 p.m. to 10:00 pm if total demand during that period is 95 calls? the service rate is five (5) calls per hour and the target utilization is 90%.
| 5 to 6 troubleshooters |
| 9 to 11 troubleshooters |
| 7 to 8 troubleshooters |
| 3 to 4 troubleshooters |
| 12 to 13 troubleshooters |