$[25$pts total$]$ A ticket booth at a concert can serve two customers at the same time. Answer the following six

questions with the figure below:

No$.$ of Customers

$($Work in Process$)$

c$.(10$ pts$)$ Populate the table below $-$ you just need to fill in yellow cells only.

a$.(3$ pts$)$ What is the server utilization? $-$ assume the ticket booth is "utilized" even when one customer is

served.

b$.(3$ pts$)$ What is the average time a customer spends in the booth?

c$.(3$ pts$)$ What is the average queue length?

d$.(3$ pts$)$ What is the maximum queue length?

e$.(3$ pts $)$ If the booth can serve only one customer after time $5,$ how much would the server utilization be

increased than otherwise?