Pete's Market is a small local grocery store with only one checkout counter. Assume that shoppers arrive at the checkout lane according to a Poisson probability distribution, with an arrival rate of $16$ customers per hour. The checkout service times follow an exponential probability distribution, with a service rate of $20$ customers per hour.

It is the manager's service goal to limit the waiting time prior to beginning the checkout process to no more than five minutes. After reviewing the waiting line analysis of his store, the manager of Pete's Market wants to consider one of the following alternatives for imprHire a second person to operate a second checkout counter. The two$-$server operation would have a service rate of $20$ customers per hour for each server. $($Round your answers to four decimal places. Report time in hours.$)$oving service.