six sigma formulas and tables.

The Elsmar Cove Business Standards Discussion Forums

Welcome to what was The Original Cayman Cove Forums!
This thread is carried over and continued in the Current Elsmar Cove Forums

Search the Elsmar Cove!

This is a "Frozen" Legacy Forum.
Most links on this page do NOT work.
Discussions since 2001 are HERE

The New Elsmar Cove Forums

Statistical Techniques and 6 Sigma

six sigma formulas and tables.

profile | register | preferences | faq | search

UBBFriend: Email This Page to Someone!

next newest topic | next oldest topic

Author	Topic: six sigma formulas and tables.
WALLACE Forum Contributor Posts: 46 From:Ontario, Canada. Registered: Nov 2000	posted 06 May 2001 09:38 PM I am looking for a list of Six Sigma formulas and the explanation of these formulas with sigma and yield tables, Any body help? Thanks in advance. Wallace. IP: Logged
Ken K. unregistered	posted 08 May 2001 09:06 AM I think you need to be more specific about formulas you're asking for. I'll give you a few and see if that's what you're asking for: DPU=Defects/Units DPMOp=DPMO=PPM=Total 1,000,000(Defects/Opportunities) DPMOp=1,000,000(DPU/Opportunities SIGMA = SQRT(LN(1/(1-EXP(-DPMOP/1000000))^2))-(2.55155+0.802853SQRT(LN(1/ (1-EXP(-DPMOP/1000000))^2))+0.010328SQRT(LN(1/(1-EXP(-DPMOP/1000000))^2))^2)/ (1+1.432788SQRT(LN(1/(1-EXP(-DPMOP/1000000))^2))+0.189269SQRT(LN(1/ (1-EXP(-DPMOP/1000000))^2))^2+0.001308*SQRT(LN(1/(1-EXP(-DPMOP/1000000))^2))^3)+1.5 where DPMOP=defects per million opportunities First Time Yield= #UnitsPassing1stInspection/#UnitsInspected approx= e^-DPU RolledUpYield= #UnitsCompleteingProcess/#UnitsProcessed approx= e^(DPU1+DPU2+DPU3...) where DPU1, DPU2, DPU3 represent the defect rate of process steps 1`, 2, 3, ... Also try http://www.isixsigma.com/offsite.asp?A=Fr&Url=http://www.qualitydigest.com/mar00/html/sixsigma.html Also check out some of the information on http://www.isixsigma.com IP: Logged
WALLACE Forum Contributor Posts: 46 From:Ontario, Canada. Registered: Nov 2000	posted 09 May 2001 05:28 PM Thanks Ken k, I am just getting started in six sigma and, I feel overwhelmed by all of the Mathematical formulas that are used to calculate the most common used functions of six sigma, I guess I need to get familiar with the most commonly used calcualtions. Wallace. IP: Logged
Greg Mack Forum Contributor Posts: 37 From:Sydney, NSW, Australia Registered: Feb 2001	posted 10 May 2001 02:57 AM Just take the normal factors for computing central lines and 3 sigma control limits for X-Bar, s and r charts. A cpk of 2 equals 6 sigma. That's probably about as basic as it gets. IP: Logged

All times are Eastern Standard Time (USA)	next newest topic \| next oldest topic
Administrative Options: Close Topic \| Archive/Move \| Delete Topic
	Hop to:

Contact Us | The Elsmar Cove Home Page

Your Input Into These Forums Is Appreciated! Thanks!

Main Site Search

Y'All Come Back Now, Ya Hear? Powered by FreeBSD!