Currently, Commercial Banks have 1 unit of ATM machines to meet customer needs. It is known that there is an average of 15 customers in the system. Then it is also known that the average time spent by someone in the system is 10 minutes. Assume that the system follows M/M/1. The Commercial Bank operational manager is considering whether it is necessary to add 1 unit of ATM machine. 

What are your considerations? To strengthen the consideration, compare the queue length, queue length, and utilities before and after adding an ATM machine?

Answer rating: 100% (QA)

In this scenario were dealing with a queuing system that follows the MM1 model which represents a singleserver queue with a Poisson arrival process an... View the full answer