The Main Street branch of the bank is much larger than the Elm Street location and services more customers on...

The Main Street branch of the bank is much larger than the Elm Street location and services more customers on a daily base. Additionally it has upgraded it computer services and facilities making it quicker to service customers at its drive in window. On average each customer service representative can service 7 customers every twenty minutes at a cost of salary and benefits for a bank teller is $19.50 per hour. The bank is open 8 hours each day. If it has been estimated that the waiting time cost per hour is $72.00 per hour in line. The branch operates one lane for the entire 8 hours per day but opens a second lane during peak times four hours per day. Assume the arrival rate for off-peak hours is 5 customers every twenty minutes and the arrival rate for peak time increases to 6.5 customersevery fifteen minutes.

Question 28: What is the weighted average number of customers in the system?

Question 29: What is the weighted average number of customers in the queue?

Question 30: What is the weighted average time a customer spends in the system?

Question 31: What is the weighted average time a customer spends in the queue?

Question 32: What is the total (non-weighted) average wait time customers spend in the system on a typical day?

Question 33: What is the total (non-weighted) average wait time customers spend in the queue on a typical day?

Question 34: What is the total daily service cost?

Question 35: What is the total daily cost of customers waiting in the system on a typical day?

Question 36: What is the total daily cost of customers waiting in the system plus the cost of service on a typical day?