Process Capability Ratio

Process Capability Ratio - Process Capability Ratio Upper...

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1 Process Capability Ratio Cp = Upper Specification - Lower Specification 6 σ þ A capable process must have a Cp of at least 1.0 þ Does not look at how well the process is centered in the specification range þ Often a target value of Cp = 1.33 is used to allow for off-center processes þ Six Sigma quality requires a Cp = 2.0
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2 Process Capability Ratio Cp = Upper Specification - Lower Specification 6 σ Insurance claims process Process mean x = 210.0 minutes Process standard deviation σ = .516 minutes Design specification = 210 ± 3 minutes
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3 Process Capability Ratio Cp = Upper Specification - Lower Specification 6 σ Insurance claims process Process mean x = 210.0 minutes Process standard deviation σ = .516 minutes
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Process Capability Ratio - Process Capability Ratio Upper...

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