please answer all parts to question 4.

8 pts Question 3 Imagine you now work for Dan's Pet Empurrium, the World's Greatest purrveyor of cat-related items (and other pets! Look we've expanded!). You've been tasked with managing the customer flow for the checkout process. You've decided to start by analyzing the current set-up. Using the information below, report the average time a customer waits in line in minutes (rounded to the nearest tenth of a minute, i.e., one decimal). Current set-up: # severs Arrival rate Service rate # of lines 1 1 7 2.9 customers/hour minutes/customer Assume the arrival and service distributions are Poisson distributed. 1.5 7 pts Question 4 You've decided that it might be best to train and open up 2 more cashier lines to help speed up checkout (assume you have plenty of space to do so). Report what will improve in terms of queueing metrics. (3 pts) Also, discuss the drawbacks (both in terms of queueing metrics and operations) to adding 2 more cashiers and cash registers to checkout. (3 pts). Finally, report your suggestion on if 2 more cashier lines should be opened or not. (1 pt)