A store has a single checkout line on saturdays customers


A store has a single checkout line. On Saturdays, customers arrive at the checkout at the average rate of 7.5 per hour (according to a Poisson distribution). The cashier takes an average of 6 minutes to process a single customer. We assume that the service time is exponentially distributed.

1. What is the system utilization?

2. What is the average time that customers wait in the line (Wq)?

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Operation Management: A store has a single checkout line on saturdays customers
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