Neve Commercial Bank is the only bank in the town of York, Pennsylvania.

On a typical Friday, an average of 20 customers per hour arrive at the bank to transact business. This process is Poisson

There are currently two tellers at the bank

The average time required to transact business is 5 minutes.

The service times for the transactions follow the exponential distribution.

a) what type of system is this?

b) what are the parameters for the arrival and service processes?

c) The probability that the bank is empty.

d) The average number in the queue.

e) The average number in the system.

f) what is the average time in queue?

g) The average time in the system.

h) CEO Benjamin Neve is concerned about the waiting time being too long. Should he be concerned? And if yes, what would you recommend he does?