When only common cause variation is present in a process,
A)no changes or adjustments are necessary
B)we conclude the process is out of control
C)human error is the sole source of variation
D)The source of the variation is easily identified

Question

Quizplus · Accepted Answer

Common cause variation is a natural and inherent part of any process, and it is not caused by any specific assignable factor or human error. Therefore, no changes or adjustments are necessary, as they may actually introduce new sources of variation or disrupt the stability of the process. However, it is important to monitor and control common cause variation to ensure that it stays within acceptable limits and does not cause excessive variation or defects.

When Only Common Cause Variation Is Present in a Process