Reference no: EM132226974

The first local bank would like to improve customer service at its drive-in facility by reducing waiting and transaction times. By a pilot study, the bank's process manager estimates the average rate of customer arrival at 28 per hour. All arriving cars line up in a single file and are served at one of three windows on a first-come-first-served basis. Each teller currently requires an average of 5 minutes to complete a transaction. The bank is considering the possibility of leasing fast information retrieval and communication equipment that would cost $30 per hour. The new equipment would, however, serve the entire facility and reduce each teller's transaction processing time to an average of 4 minutes per customer. Assume that interarrival and activity times are exponentially distributed. If our manager estimates the cost of a customer's waiting time in queue (regarding future business lost to the competition) to be $20 per customer per hour, please calculate the hourly cost of customer waiting? $ Blank 1. Fill in the blank, read surrounding text. (in the format of 99.99). The average waiting time will be Blank 2. Fill in the blank, read surrounding text. minutes (in the format of 9.99). The average time in the system will be Blank 3. Fill in the blank, read surrounding text.minutes (in the format of 9.99). If the manager decides to adopt the new equipment, what is the hourly cost of customer waiting? $ Blank 4. Fill in the blank, read surrounding text. (in the format of 99.99).