iSixSigma

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

Six Sigma – iSixSigma › Forums › Old Forums › General › check the link(1.5 shift) , is this true?

Viewing 7 posts - 1 through 7 (of 7 total)
  • Author
    Posts
  • March 8, 2005 at 6:05 pm #38666

    Jorge
    ★ 20 Years ★
    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
    March 8, 2005 at 8:29 pm #116078

    Not Again!
    ★ 10 Years ★
    Participant

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

    0
    March 9, 2005 at 12:02 am #116089

    Mikel
    ★ 10 Years ★
    Member

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

    0
    March 9, 2005 at 1:33 am #116093

    Ken Feldman
    ★ 10 Years ★
    Participant

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

    0
    March 10, 2005 at 3:07 am #116173

    Gabriel
    ★ 20 Years ★
    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
    March 10, 2005 at 5:02 am #116179

    DD
    ★ 10 Years ★
    Participant

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

    0
    March 10, 2005 at 6:58 pm #116245

    Mike Carnell
    ★ 20 Years ★
    Participant

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

    0
  • Author
    Posts
Viewing 7 posts - 1 through 7 (of 7 total)

The forum ‘General’ is closed to new topics and replies.