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check the link(1.5 shift) , is this true?

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Viewing 7 posts - 1 through 7 (of 7 total)
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  • #38666

    Jorge
    Participant

    i think this is not the 1.5 source
    this is totally wrong
    http://www.adamssixsigma.com/Newsletters/1.5_standard_deviation_shift.htm
    what you think
    jorgeA

    0
    #116078

    Not Again!
    Participant

    No – the 1.5 shift was invented by some Japanese cowboy who lives in Arizona

    0
    #116089

    Mikel
    Member

    No it is not true and the premise out forth by adamssixsigma is idiotic.

    0
    #116093

    Ken Feldman
    Participant

    Isn’t that Carnell’s ghost name while living in TX?

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    #116173

    Gabriel
    Participant

    That guy cannot tell sampling variation from process shift. The  ±3 sigmas confidence interval of the averages of samples of size 4 will be ±1.5 sigmas of the individuals even if the samples of size 4 are taken at random from an already finished lot of parts. Would you say that the lot shifts?

    0
    #116179

    DD
    Participant

    I fully second that. Its totally baseless to assume the 1.5 sigma shift and adams theory has no grounds
    DD

    0
    #116245

    Mike Carnell
    Participant

    Darth,
    I am in South Africa right now so it has been temporarily vacated.
    Regards,
    Mike

    0
Viewing 7 posts - 1 through 7 (of 7 total)

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