What is cp & cpk value?

Question

Accepted Answer

Cp & Cpk values are statistical measurements used to assess the capability of a process to produce products within specifications.

Cp is a process capability index that measures how well a process can meet the specifications of a product.
Cpk is a process capability index that takes into account the centering of the process mean with respect to the specification limits.
A Cp value of 1 indicates that the process spread is equal to the specification spread, while a Cp value greater than 1 is desirable.
A Cpk value of 1 indicates that the process mean is centered between the specification limits, while a Cpk value greater than 1 is desirable.

Accepted Answer

Cp - Shows whether the distribution can potentially fit to within the specifications. Cpk - shows whether the values average is centrally located.

Accepted Answer

Cp - Shows whether the distribution can potentially fit to within the specifications. Cpk - shows whether the values average is centrally located.

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