Generally speaking,a process is presumed to be stable and in control when ______.
A)the values on the control chart are randomly distributed around the center line
B)the values on the control chart fall outside the upper control limit
C)the values on the control chart fall outside the lower control limit
D)the values on the control chart can be traced to a special cause

Question

Quizplus · Accepted Answer

A stable and in control process is indicated by the values on the control chart being randomly distributed around the center line, indicating that the process is operating within a predictable range of variation, with no identifiable special causes of variation present. Options B and C indicate that the process is out of control, with values falling outside of the upper or lower control limits, indicating that there may be special causes of variation at work. Option D also indicates that the process is out of control, with values associated with specific and identifiable special causes of variation.

Generally Speaking,a Process Is Presumed to Be Stable and in Control