iSixSigma

Sigma Shift

This topic contains 4 replies, has 3 voices, and was last updated by  Adolfo 2 months ago.

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  • #56106

    Adolfo

    Hi,

    I have reviewed my notes of six sigma, and have a doubt of why we should consider Sigma shift in an analysis of capability.

    Thanks for yur help.

    Adolfo

    #203090

    Robert Butler
    Participant

    Welcome to the club. I wouldn’t waste my time worrying about it.

    #203094

    Chris Seider
    Participant

    Yes, it’s most important to know if you’ve included lots of sources of variation including seasonal.

    However, if you start comparing to other “sites”, “lines”, etc…be sure to understand if who shifted and by how much, etc.

    #203101

    Mike Carnell
    Participant

    Adolfo Short term capability will almost always be over stated. If you have complete control of a process then you can expect Long term to equal short term. The only way to put a number up for Long term that you can back up is to take data and measure it. I have been posting that on this discussion forum since my first posts in 2001.

    The whole shift thing currently is only useful to keep a bunch of old fossils busy running around complaining about Six Sigma. It has been taught as a footnote for over 2 decades. We are not telling any of the old fossils that love to throw around the word “stupid” because there is nothing that makes a person appear more stupid than to still be making an issue of something that hasn’t been an issue for more than 20 years. Maybe it gives then purpose in life.

    Just my opinion

    #203111

    Adolfo

    Thank you all for your positive comments.

    Adolfo

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