Answer: 40 minutes
Step-by-step explanation:
A queueing theory is simply the study of queues or waiting lines. From the question, we are informed that a queuing theory analysis for the Department of Motor Vehicles determines that customers typically wait for 8 minutes and that the agency should strive never to exceed more than 5 customers in a single line.
The maximum amount of time that customers should be expected to wait will be the wait time for a customers multiplied by the number of customers on a queue. This will be:
= 5 × 8 minutes
= 40 minutes