The quality of the PPM transform.The defect rate (PPM) or defects per million opportunities rate (defects per million opportunities - DPMO) can be converted into units of measurement "Six Sigma alpha Mu gamma. Note that in 1.5 displacement. The displacement of the quality and level of the relationship of 1.5 sigma, from equation (breyfogle 1999):The quality level of 0.8406 sigma = +
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