A single bay car wash with an exponential arrival rate and service time has cars arriving an average of 10 minutes apart, and an average service time of 4 minutes. The utilization factor is:
A) 0.24.
B) 0.4.
C) 0.67.
D) 2.5
E) None of the answer choices is correct.

Question

Quizplus · Accepted Answer

Utilization factor = (arrival rate x service time) = (1/10 minutes x 4 minutes) = 0.4. Since the utilization factor is less than 1, option D is not a valid choice. Option E is also not correct since B is a valid choice.

A Single Bay Car Wash with an Exponential Arrival Rate