99. In general, a process is considered to be in control for all the following conditions except
A) no points are outside the control limits
B) all points are above the centerline
C) the points are randomly distributed following a normal population
D) no pattern exists in the plotted points (no evidence of a run)

Question

Quizplus · Accepted Answer

If all points are above the centerline, it means that the process is consistently producing output above the target, which is not desirable. A process should be in control if it is producing output within the control limits and there is no pattern or trend in the plotted points. The distribution of the points does not have to follow a normal population for the process to be in control.

99 in General, a Process Is Considered to Be in Control