You are the manager of a local bank where three tellers provide services to customers. On average, each teller takes three minutes to serve a customer. Customer arrives, on average, at a rate of 44 per hour. Having recently received complaints from some customers that they waited a long time before being served, your boss askes you to evaluate the service system. Specifically you must provide answers.
a. the average utiliztion of the three teller service system is p = __ ( rounded four decimal places)