Assignment:
A telecommunications company receives customer calls at a rate of 25/h. The interarrival times are exponentially distributed. Each call requires, on the average, 20 min. The times for each call also follow an exponential distribution.
a. What is the minimum number of customer service agents needed for this process to reach steady state?
b. Create a plot that shows the expected waiting time as a function of the number of agents.
c. The telecommunications company would like to limit the average waiting time to 2 min or less. How many agents should the company hire?
Provide complete and step by step solution for the question and show calculations and use formulas.