J
jackylpt
Hi there,
Now the six sigma is buzzword in many area. My question is how to calculate process sigma level.
For exmaple, suppose there is no shift in process, our process means is 100, taget is also 100,process sigma(by R/d2 calculating) is 1.8, specification is 90--110,
Question1: how to calculate sigma level?
is it (110-90)/6*1.8?
Question2: now I am also confusing how to calculate the cpk of this ?
thanks
michael
Now the six sigma is buzzword in many area. My question is how to calculate process sigma level.
For exmaple, suppose there is no shift in process, our process means is 100, taget is also 100,process sigma(by R/d2 calculating) is 1.8, specification is 90--110,
Question1: how to calculate sigma level?
is it (110-90)/6*1.8?
Question2: now I am also confusing how to calculate the cpk of this ?
thanks
michael