Defect rate (DPMO) versus Process Sigma Level (Linderman, 2003

Lean learning six sigma

Sigma Conversion Chart –

Six Sigma for Evaluating Electronic Signature in eProcurement System: A Case Study

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The 1.5 Sigma Shift in Six Sigma

Defect rate (DPMO) versus Process Sigma Level (Linderman, 2003)

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Basic of Six Sigma, DPMO (Defects Per Million Opportunities), PPM (Part Per Million Opportunities) – Engineering with Management

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Nature of competitive advantage (Arnheiter, 2005)

Total cost (excluding raw material cost) incurred in manufacturing a

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