Consider an espresso stand with a single barista. Customersarrive to the stand at the rate of 28 per hour according to aPoisson distribution. Service times are exponentially distributedwith a service rate of 35 customers per minute. If the arrival rateremains at 28 customers per hour and the stand’s manager wants tohave the average time a customer spends in the system (i.e., waittime and service time) to be a maximum of 6 minutes on average,then the service rate must Select one: A. decrease by 2 to 33customers per hour. B. decrease by 3 to 32 customers per hour. C.increase by 3
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