What is the relationship between Standard Deviation and 6 Sigma?

[Quality-1]

Hi

Could someone please explain what is the relationship between Standard Deviation and 6 Sigma? What s the formula for calculating Standard Deviation and 6 Sigma? If I have values for Standard Deviation: 0.0253, 0.0242, 0.0351 and 0.0207

How you calculate 6 sigma from the above values?

Thank you

 

[Bev D]

the short answer: multiply the Standard Deviation by 6.

"sigma" is the english word for the greek letter σ which is used to denote the standard deviation. so six sigma is 6*σ

 

[Steve Prevette]

But remember the infamous 1.5 sigma shift!

 

[Bev D]

ah we should let the dead rest in peace...

 

[Quality-1]

Thank you !!