Answer :
If they were to add more staff to assist with the check-in process, then the average time parents wait decreases, the maximum time the parents wait decreases and average number of parents waiting to check in their child decreases. So, the correct answer is (i), (ii), (iii).
Parents and students standing in line for check-in and actually checking in. Parents and children are the customers here, and the staff who support parents and students are the servers. A limited number of servers and many clients will increase the queue length. In other words, as more parents enter the queue, the wait time for each parent increases, increasing the average wait time. Additionally, the longer the queue, the longer the maximum wait time.
Therefore, adding check-in staff will increase the number of customers to serve the same number of patients. Queues are split across multiple servers, so you get all three benefits.
To learn more about queues, refer:
https://brainly.com/question/24275089
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