What do you look for to determine when a process is in a state of statistical control?
A)A control chart with a series of consecutive points that are above the center line and a series of consecutive points that are below the center line.
B)A control chart in which no points fall outside either the upper control limit or the lower control limit and no patterns are present.
C)A control chart in which all the points are exactly the same.
D)All of these choices are true.

Question

Quizplus · Accepted Answer

A process is considered to be in a state of statistical control when there are no points outside either the upper or lower control limit and no non-random patterns are present on the control chart. This indicates that the process is stable and predictable, and any variations observed are due to common causes rather than special causes. The other options (A and C) suggest the presence of non-random patterns or points that are outside the control limits, which would indicate a process that is not in statistical control.

What Do You Look for to Determine When a Process