Problem:
You need cash and FAST! You jump out of your car at a location known to have one ATM, but a history of a line. Usually you can expect to wait 250 seconds from the time you arrive until leaving with the $. Service time averages 30 seconds.
a. What is the utilization of the server? _____%
b. What is the expected time between people arriving to this system? _____ seconds
c. How long is the line expected to be upon arrival? _____ people
d. What is the service rate of the server? _____ people/second
Correct answer with work shown for every answer and necessary conversions shown from data given.