check the link(1.5 shift) , is this true?
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- This topic has 6 replies, 7 voices, and was last updated 17 years, 2 months ago by
Mike Carnell.
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March 8, 2005 at 6:05 pm #38666
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
jorgeA0March 8, 2005 at 8:29 pm #116078
Not Again!Participant@Not-Again!Include @Not-Again! in your post and this person will
be notified via email.No – the 1.5 shift was invented by some Japanese cowboy who lives in Arizona
0March 9, 2005 at 12:02 am #116089No it is not true and the premise out forth by adamssixsigma is idiotic.
0March 9, 2005 at 1:33 am #116093
Ken FeldmanParticipant@DarthInclude @Darth in your post and this person will
be notified via email.Isn’t that Carnell’s ghost name while living in TX?
0March 10, 2005 at 3:07 am #116173
GabrielParticipant@GabrielInclude @Gabriel in your post and this person will
be notified via email.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?
0March 10, 2005 at 5:02 am #116179I fully second that. Its totally baseless to assume the 1.5 sigma shift and adams theory has no grounds
DD0March 10, 2005 at 6:58 pm #116245
Mike CarnellParticipant@Mike-CarnellInclude @Mike-Carnell in your post and this person will
be notified via email.Darth,
I am in South Africa right now so it has been temporarily vacated.
Regards,
Mike0 -
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