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When is it possible to treat attribute data as variable data?

Six Sigma – iSixSigma Forums General Forums Implementation When is it possible to treat attribute data as variable data?

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  • #256332

    Oliveira
    Participant

    I have data about a glass container process and I want to do a capability analysis by using the total defective rate. The data is sampled every 1h where is taken the number of rejected containers, as well as the number of inspected containers. However, as I have lots of inspected containers per hour (>5000) I was wondering if I could not do the capability analysis by considering the defective rate variable data.
    Thanks in advance

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    #256333

    Robert Butler
    Participant

    You can do a capability analysis on attribute data. Check Chapter 9 – Measuring Capability with Attribute Data in the book Measuring Process Capability by Bothe – you can probably get the book through inter-library loan.

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