Problem is solved step by step in a simple way.
#Example data:
#A road transport company has one reservation clerk on duty at a time.
#He handles information of bus schedule & makes reservations.
#Customers arrive at a rate of 8 per hour & the clerk can service 12 customers on average per hour. Answer the following:
#1. What is the avg. no. of customers waiting for service of the clerk?
#2. What is the avg. time a customer has to wait before getting service?
#3. The management is planning to install a computer system to serve customers.
#This is expected to reduce the service time from 5 to 3 minutes.
#The additional cost of having the new system works out to Rs. 50/day.
#If the cost of goodwill of having a customer to wait is estimated to be 12 paisa/minute spent waiting before served,
#should be the company install the computer system? Assume 8 hours working day.
#queuing theory
#queuing problem
#queuing model
#average time waiting in queue
#number of customer waited in queue
#average waiting time in queue
#average waiting time in system
#counter utilization
#probability