A Picture Is Worth a Thousand Words

Description: One of the most powerful tools in an investigator’s toolbox is graphical analysis. The idiom “a picture is worth a thousand words” aptly describes the power of a graph or chart to communicate a nonconformance and the potential root cause at a glance.…


Keywords: Root cause analysis (RCA),Graphical analysis,Histogram,Trend shift,Specification testing

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Good down to earth language article dealing with statistics. Shows how graphics can not only convey nonconformities to others, they can help uncover unforeseen anomalies, e.g. leptokurtic or bimodal histograms.
--Elizabeth, 12-17-2019


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