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Reasonable subgrouping

Six Sigma – iSixSigma Forums Old Forums General Reasonable subgrouping

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  • #48124

    Tomas
    Member

    Hi,
    I’ve heard about rational subgrouping, but I can’t find anything in our library, or on the internet, about the selection of a reasonable subgroup? Can anyone tell me what it is and give me a reference?
    Thanks!

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    #161163

    clb1
    Participant

    Go to the blue bar at the top of this page. Search “Discussion Forum” and type in “rational subgroups” in the “for” section and click “Go” there are 294 entries and several of them have embedded links to articles/sites about rational subgroups.

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    #161173

    Steven Bonacorsi
    Member

    Tomas,
    Reasonable subgrouping is not a statistical concept – your correct in referring to rational subgrouping at the correct term.
    Steven Bonacorsi
    Lean Six Sigma Master Black Belt

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    #161188

    Tomas
    Member

    If a reasonable subgroup is not a statistical concept what is it? I thought someone mentioned it in the forum a few weeks ago? I think the reference was Advanced SPC by Doug. Montgomery, but I can’t find the book.
    Thanks anyway ….

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    #161204

    Steven Bonacorsi
    Member

    Tomas,
    I am not sure, it could have been a typo, an adjective to subgrouping but not intended to be linked, or a misunderstanding.
    Warm Regards,
    Steven Bonacorsi

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