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Question on CPK

Six Sigma – iSixSigma Forums Old Forums General Question on CPK

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  • #38302

    PS
    Participant

    Gurus,
    Need help , Please let me know if a process has one sided specification limit and CPK value = 0.27 , Than what % of product will fall beyond the specification limit and How will the calculations proceed.
    Many Thanks
    PS
     

    0
    #114479

    S
    Member

    Here’s the answer to your homework problem.
    https://www.isixsigma.com/forum/showmessage.asp?messageID=63583

    0
    #114480

    KingDope
    Participant

    Sai – I dont think the question was difficult enough for a Black Belt.

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    #114486

    Dog Sxxt
    Participant

    Any properly trained GB shall know how to answer such question.

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    #114487

    spuranik
    Member

    Assuming a normal distribution; if you know Cpk value you already know std dev. value.  You already know the target.  You can use the normal distribution formula and use the table to find area under the curve. Know to use the new mean (where the process has shifted to).

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