Control charts have two general uses in an improvement project. Undeniably, the most common application is as a tool to ...

Control charts that display attribute data count the number of items or occurrences in a sample and assign as pass/fail, yes/no or presence/absence of a defect.

The following statements create a p chart displaying both sets of control limits: title 'p Chart with Revised Limits for Failed Circuits'; symbol v=dot c=salmon; proc shewhart data=circ_one ...