In a multiple-server system, the ratio of the mean effective service rate for the system to the arrival rate to the system must be greater than 1 for customers to be served in a reasonable time.

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Quizplus · Accepted Answer

This statement is true. The arrival rate to the system must be less than the sum of the mean effective service rates of all the servers in the system for customers to be served in a reasonable time. Thus, the ratio of the mean effective service rate for the system to the arrival rate to the system must be greater than 1.

In a Multiple-Server System, the Ratio of the Mean Effective