Quality and Process Methods • Pareto Plots • Statistical Details for the Pareto Plot Platform
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Statistical Details for the Pareto Plot Platform
Likelihood Ratio Chi-Square Test
Notation
The likelihood ratio Chi-square test statistic computed in the Pareto Plot platform uses the following notation:
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nij is the count for Cause i in Group j.
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Ej is the expected count for Group j. This is the mean count of each group, across causes.
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Ei is the expected count for Cause i. This is the mean count of each cause, across groups.
Likelihood Ratio Chi-Square Test Statistic within Groups
Likelihood Ratio Chi-Square Test Statistic across Groups

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Help created on 10/11/2018