The process capability index is used only for p and c charts while the process capability ratio is used only for and R charts.

Name: The process capability index is used only for p and c charts while the process capability ratio is used only for and R charts.
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Question

The process capability index is used only for p and c charts while the process capability ratio is used only for  and R charts.

Quizplus · Accepted Answer

The process capability index (Cpk) can be used for any type of control chart, including X-bar and R charts. The process capability ratio (Cp) is also not limited to specific control charts and can be used for any type of process data.

The Process Capability Index Is Used Only for P and C