Question: At your local post office, there are two servers providing service to customers. On average, each server takes 6 minutes to serve a customer, with

At your local post office, there are two servers providing service to customers. On average, each server takes 6 minutes to serve a customer, with a standard deviation of 3 minutes. Customer arrivals follows a Poisson process, with a mean inter-arrival time of 5 minutes and a standard deviation of 5 minutes as well. Calculate the average time spent in the queue by a customer before they are served, if the post-office uses a pooled queueing configuration.

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