How can I measure the capability for attibute data ?

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March 16, 2005 at 6:18 pm #38750

Wilson Cordeiro
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Here in our site, we have a specific production line that we need to show the process capability (as required by customer).
The problem is, in the inspection station the operator needs to use a go – no go gage, after this he insert the results (yes or no) in a spreadsheet and calculate the yield of the line.
Nowadays we use yield as my main quality indicator, but I need to plot the cpk and ppk to show the capability of my process., but I don’t know how can I calculate the cpk and ppk for these attributes.
Could you help me to find any solution ???

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March 17, 2005 at 11:11 am #116462

RK
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These links could help
An article by Kerri Simonhttps://www.isixsigma.com/library/content/c010813a.asp
Yield to sigma conversion tablehttps://www.isixsigma.com/library/content/sigma_table.asp

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