The following chart depicts the last 50 samples taken from

Chapter 10, Problem 2E

(choose chapter or problem)

The following \(\overline X\) chart depicts the last 50 samples taken from the output of a process. Using the Western Electric rules, is the process detected to be out of control at any time? If so, specify at which sample the process is first detected to be out of control and which rule is violated.

     

Equation Transcription:

Text Transcription:

overline{X}

3{sigma}

2{sigma}

1{sigma}

overline{overline{X}}

-1{sigma}

-2{sigma}

-3{sigma}