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Sample size for Process Capabilities

Six Sigma – iSixSigma Forums Old Forums General Sample size for Process Capabilities

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  • #40461

    JAB
    Participant

    How does one determine an adequate sample size when calculating sigma for a process capability index? Thanks.

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    #125653

    Jaybee
    Participant

    JAB,
    Depends on what you want to ‘sample’ the bog standard answer is usally 30 data points….
     
    Jaybee

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