Refer to the $p$ chart in Section $8\mathrm{.}2$ Exercise $10$ of the text.

According to this $p$ chart, is the process within statistical control? If not, provide a reason why not.

a$.$ It appears to be within statistical control.

b$.$ It does not appear to be within statistical control because there is an obvious non$-$random trend, cycle, or pattern in the points.

$$ c$.$ It does not appear to be within statistical control because at least one point is more extreme than the UCL or LCL$.$

$$ d$.$ It does not appear to be within statistical control because at least $8$ consecutive points are located all above or all below the centerline.

Chap $8$ HW

Report a problem

Refer to the $R$ chart in Section $8\mathrm{.}2$ Exercise $10$ of the text.

According to this $R$ chart, is the process within statistical control? If not, provide a