Using your phone's internet browser
go to:
Click and drag this link to
the Home icon in your browser.

What is 6sigma, pls explain briefly

Tags: pls explain
Asked by mukesh gautam, 13 Jul '10 06:48 pm
  Invite a friend  |  
  Save  |  
 Earn 10 points for answering
Answer this question  Earn 10 points for answering    
4000 characters remaining  
Keep me signed inNew User? Sign up

Answers (2)


I am afraid signs are not reproduced here .. if yoy need further clarification , I can put in the comments

The term SIGMA (Greek letter ) is used in Statistics as a measure of variation. Lower the value, lower is the variation or higher is the consistency.

z =( X- Meu) / sigma

In Six Sigma methodology, the sigma level (actually sigma score or Z - value ) is a benchmark metric and it indicates how often defects are likely to occur.
Where x is a given limiting value, may be lower specification limit (LSL) or upper specification limit (USL), is the population mean and is the population standard deviation.

Answered by PARTHA PATHAK, 13 Jul '10 06:53 pm

Report abuse
Not Useful
Your vote on this answer has already been received

You may have noticed the increase of discussion and publication about a topic called 6 Sigma. However, what isnt as obvious is what 6 Sigma actually is. First created by Motorola, 6 Sigma is an intensive, highly focused, and greatly effective quality control strategy. Its primary goal is to maintain the performance of an organization virtually error-free.

When measuring the performance of a company, its Sigma level is given. Traditionally operated businesses will usually be found running at a 3 or 4 Sigma performance level, even though their rate of problems per opportunity usually falls between 6,200 and 67,000 per one million.

On the other hand, an organization running at 6 Sigma will instead see an average of only 3.4 problems per million opportunities. This tremendous difference is can make the difference between success and failure in a market where the expectations of customers rise as quickly as the complexity of todays products and processes.

Surprisingly enough ...more
Answered by jameel ahmed, 13 Jul '10 07:00 pm

Report abuse
Not Useful
Your vote on this answer has already been received

Ask a Question

Get answers from the community

600 characters remaining

Related Answer


Cp = Process Capability. A simple and straightforward indicator of process capability.Cpk = Process Capability Index. Adjustment of Cp for the effect ..more