Out-of-control indicators may include a number of conditions.What is not one of these?
A)At least 8 upward (or downward)consecutive changes
B)At least 8 consecutive points above (or below)the centerline
C)At least 1 point beyond two standard deviations from the centerline
D)At least 4 of 5 consecutive points beyond one standard deviation from the centerline

Question

Quizplus · Accepted Answer

Out-of-control indicators are used in statistical process control to identify potential issues in a process. Options A, B, and D are typical rules used to identify out-of-control conditions in control charts. However, option C, which mentions "at least 1 point beyond two standard deviations from the centerline," is not typically considered an out-of-control condition on its own. Standard practice often involves points beyond three standard deviations to signal an out-of-control condition.

Out-Of-Control Indicators May Include a Number of Conditions