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Interpretation of p charts

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  • #35377

    Fontanilla
    Participant

    I am looking for information on the interpretation of p charts. Specifically, I want to know if it is common to apply the full range of Western Electric rules to these attributes charts or if it is more common to use just a subset.
    Any insight on articles I might review?
    Thanks.

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    #99306

    Dillon
    Participant

    Dan,
    I don’t know of any specific articles and will be curious to see the repsonses you get…
    I have not had the opportunity to utilize p charts very often, but I was taught to analyze in the same manner as a control chart utilizing the rules.
    Will be watching for other posts…

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    #99307

    Ken Feldman
    Participant

    Check in Minitab.  She uses 8 of the WE rules for continuous data control charts and only 4 for the discrete charts such as the p chart.  Why not check the original source, “Statistical Quality Control Handbook” by AT&T copyright 1956.

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