Which of the following suggests a process that is NOT in control?
A) Points follow a smooth pattern from the lower control limit to the upper control limit.
B) The number of points above and below the center line is about the same.
C) Points fall randomly above and below the center line.
D) No points are outside the control limits.

Question

Quizplus · Accepted Answer

A process that is in control will have points that fall randomly above and below the center line, not follow a smooth pattern from one control limit to the other. This smooth pattern suggests a systematic variation, indicating the process is not in control.

Which of the Following Suggests a Process That Is NOT