Which of the following is an example of common cause variation?
A)Your travel time to work varies between 15 and 20 minutes each way.
B)On the day you return from vacation,there are over 800 e-mails waiting for you in your in-box.
C)An ice storm causes the shipment of steel girders to arrive a week late.
D)Your alma mater begins the football season 4-0 for the first time ever and prices for Homecoming football game tickets go through the roof.

Question

Quizplus · Accepted Answer

Common cause variation refers to natural variation that exists within a process, without any specific cause or special circumstances. Travel time to work varying between 15 and 20 minutes is an example of common cause variation, as it is a natural variation that can be expected to occur without any specific reason. The other options (B, C, and D) have specific causes or circumstances that lead to the variation, which makes them examples of special cause variation.

Which of the Following Is an Example of Common Cause