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Statistical Tests for Comparing Pareto ChartsKeywords: Entropy , Hypotheses testing , Pareto chart , Statistical process control Abstract: The Pareto chart is one of the most useful of the "magnificent seven", i.e. of the seven major SPC problem-solving tools. Sometimes a decision-maker is interested whether two Pareto charts corresponding to different processes differs significantly. In the present paper a new statistical test for comparing Pareto charts is suggested.
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