In a queueing system, a _______________ might be a machine waiting for repair or a
phone call awaiting a customer service representative. A(n) _______________might be
a repairperson or a customer service representative. - ANSWER customer; server
All of the following are true about queueing theory except
____________________________. - ANSWER actual time spent in the queue is more
important than customer perception
Analytical queueing models assume a Poisson probability distribution for
_____________ and an exponential distribution for ______________. - ANSWER
arrivals; service times
The two ways of computing resource utilization are __________________ and
___________________. - ANSWER resources used divided by resources available;
demand rate divided by service rate times number of servers
All of the following are true about computing resource utilization except
________________ - ANSWER the dimensions of the numerator and denominator
must be different when calculating utilization
If you are measuring parts per day or transactions per minute, you likely are calculating
_________________. - ANSWER throughput
In a process, whenever one resource's utilization is greater than 100 percent, the work
orders will __________________ - ANSWER endlessly back up in front of that resource
Little's Law is a simple equation that explains the relationship among
_________________, ______________, and work-in-process. - ANSWER throughput;
flow time
If a coffee shop makes 1,000 cups of coffee per week, each of which uses 1/4 pound of
coffee beans, and it typically maintains an inventory of 200 pounds of coffee beans,
________________ is the throughput - ANSWER 250
In a(n) ________________ modeling system, the number of arrivals is counted and
whether or not a customer is being serviced during each one-minute interval is
determined. Then what happens during the next one-minute interval is considered, and
so forth. - ANSWER fixed-time
In the Theory of Constraints (TOC), a constraint is defined as
_______________________ and a non-bottleneck work activity is one in which