Sigma

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gargysingh
Posts: 6
Joined: Mon Jan 22, 2018 7:24 am

Sigma

Postby gargysingh Mon Jan 29, 2018 6:58 am

Hi Team,

I would like to know about sigma-3 Sigma, 6 Sigma and how can the questions include sigma - calculations and which processes. My understanding is not clear.
ajaynit
Contributor
Contributor
Posts: 116
Joined: Thu Dec 07, 2017 5:35 pm

Re: Sigma

Postby ajaynit Mon Jan 29, 2018 8:56 am

based on how much i know:

6 sigma means accuracy level of 99.9


3 sigma means accuracy level of 99.73


1 sigma means accuracy level of 68.27



e.g if its 1 sigma then you are going to have (100-68.27) = 31.73 errors out of 100
if its 3 sigma then you are going to have (100-99.73) = .27 errors out of 100

now can you guess errors in case for six sigma?


Note: sorry for grammar/sentences, written in hurry burry while hopping from one meeting to another...Its Monday yay :-)....
gargysingh
Posts: 6
Joined: Mon Jan 22, 2018 7:24 am

Re: Sigma

Postby gargysingh Tue Jan 30, 2018 9:30 am

Thanks for the reply. I am looking for numerical based examples to illustrate how the questions would apper in exam. like in control limits in quality management

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