Question: A single-server queueing system has an average service time of 16 minutes per customer, which is currently constant (there is no variation because the process

A single-server queueing system has an average service time of 16 minutes per customer, which is currently constant (there is no variation because the process is performed by a machine). The manager is thinking of converting to a system with an employee to perform the service. The service time is anticipated to be 16 minutes, with an exponential distribution. The arrival rate will remain the same. The effect will be to: Group of answer choices

decrease the average waiting time.
increase the average waiting time.
decrease the utilization factor.
increase the utilization factor.

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