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SAB7#82 SIGMA
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Mind Map on SAB7#82 SIGMA, created by malba76 on 21/08/2015.
Mind Map by
malba76
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malba76
almost 9 years ago
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Resource summary
SAB7#82 SIGMA
Is another name for standard deviation and indicates how much variance from the mean has been established as permissible in a process.
The level of quality a company has decided to try to achieve is represented by 3 or 6 sigma.
Annotations:
Six Sigma is a methodology for organizational process improvement and achieving high levels of correctness with extremely reduced variances.
1 Sigma: 68.27% = 308.500 defects in 1 million
2 Sigma: 95.45% = 66.800 defects in 1 million
3 Sigma: 99.73% = 2.700 defects in 1 million
4 Sigma: 99.9937% = 233 defects in 1 million
5 Sigma: 99.999943% = 6,210 defects in 1 million
6 Sigma: 99.9999998% = 3 o 4 defects in 1 million
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