When do you use Cpk and Ppk? We use 30 pcs. samples for testing products. Some of our people say you must use Ppk for evaluations, some say Cpk. Which is right?
INITIAL POSTING AND PYZDEK'S RESPONSE John Clay asked Quality Digest: We are being asked to measure defects based on the defect per million Six sigma philosophy. I'm far from versed in Six Sigma, let alone DPMO. I would like to understand formulas, process, expected outcomes or anything that I can get my hands on concerning DPMO.
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Re: Defective Parts per Million - posted by rachola on 10/1/04 Tom Pyzdek Answer to this topic: Here's a link to an article I wrote about this topic: http://www.qualitydigest.com/oct99/html/sixsigma.html Tom Pyzdek
RESPONSE: I agree completely with Tom's response. Relative to the details of a Six Sigma deployment, suggest that you checkout my response to some questions that were to given to me. For these responses check out the link http://www.isixsigma.com/library/content/ask-05.asp
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forrestbreyfogle 10/3/2004
INITIAL POSTING AND PYZDEK'S RESPONSE John Clay asked Quality Digest: We are being asked to measure defects based on the defect per million Six sigma philosophy. I'm far from versed in Six Sigma, let alone DPMO. I would like to understand formulas, process, expected outcomes or anything that I can get my hands on concerning DPMO.
Message replies
Re: Defective Parts per Million - posted by rachola on 10/1/04 Tom Pyzdek Answer to this topic: Here's a link to an article I wrote about this topic: http://www.qualitydigest.com/oct99/html/sixsigma.html Tom Pyzdek
RESPONSE: I agree completely with Tom's response. Relative to the details of a Six Sigma deployment, suggest that you checkout my response to some questions that were to given to me. For these responses check out the link http://www.isixsigma.com/library/content/ask-05.asp
Forrest Breyfogle
512-918-0280
forrest@smartersolutions.com
rachola 10/1/2004
Tom Pyzdek Answer to this topic:
Here's a link to an article I wrote about this topic:
http://www.qualitydigest.com/oct99/html/sixsigma.html
Tom Pyzdek