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Process process capability measures process

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Unformatted text preview: Measures Process Capability Ratio Cp = tolerance range process range upper specification limit lower specification limit = 6 3 4/29/2011 Process Capability Ratio Cp = Upper Specification - Lower Specification 6 A capable process must have a Cp of at least 1.0 Does not look at how well the process is centered in the specification range Often a target value of Cp = 1.33 is used to allow for off-center processes Six Sigma quality requires a Cp = 2.0 Process Capability Ratio Insurance claims process Process mean x = 210.0 minutes Process standard deviation = .516...
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