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What is the difference between 3 sigma and six sigma?
3 Sigma is 66800 defects per million pieces 6 Sigma is 3-4 defects per million pieces You can check out the number of defective pieces per million & the % accuracy for all Sigma levels in the six sigma conversion chart in the related links section
What does sigma stand for in six sigma?
In Six Sigma, "sigma" is actually a statistical measure of standard deviation. It represents how far a process is from perfect. Six Sigma seeks to have minimal defects and variations while achieving near-perfect quality with a mere 3.4 defects per million opportunities. Start your certification path today! Visit iCert Global and apply code LIVE10 for an instant 10% off your course.
What is the abbreviation for parts per million?
parts per million = ppm
What units are ppm measured in?
"ppm" means "parts per million". It's a ratio of two numbers that both have the same unit, so the ratio has no unit. It could be ounces per million ounces inches per million inches seconds per million seconds people per million people . . etc.
Is one percent 1000 parts per million?
1% is 10,000 parts per million.
