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Consider a waiting line system with the following parameters:
number of servers = 3
customer arrival rate = 5 per minute
customer service rate (per server) = 2 per minute
coefficient of variation of interarrival times = 0.8
coefficient of variation of service times = 0.6
Find the expected length of the waiting line.
PS The answer is not 2.508 as other solutions express.
Automobiles arrive at the drive-through window at the downtown Urbana, Illinois, post office at the rate of 4 every 10 minutes. The average service time is 2 minutes.
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