Question: 1. In a queueing system, customers arrive once every 4 seconds (standard deviation = 4) and services take 2 seconds (standard deviation = 4.3). What

1. In a queueing system, customers arrive once every 4 seconds (standard deviation = 4) and services take 2 seconds (standard deviation = 4.3). What is the average number of customers in the system?

2. At the stadium, there are five lines for arriving customers, each staffed by a single worker. The arrival rate for customers is 160 per minute and each customer takes (on average) 1.7 seconds for a worker to process. The coefficient of variation for arrival time is 1.5 and the coefficient of variation for service time is 1.3.

How much time (in seconds will an average customer spend in queue)?

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