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Cpm
index
A Process Capability Index.
A measure similar to the Cpk index that
also takes into account variation between the process average and a target
value. If the process average and the target are the same value, Cpm will
be the same as Cpk. If the average drifts from the target value, Cpm will
be less than Cpk.
where T is the process target, x-doublebar is the Grand Average
and  x
is Process Sigma
See also:
Process
Capability Charts
Confidence
Intervals for Cpm
Cp
Cpk
Cr
Process
Performance
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