A modified form of the Pearson χ 2 test statistic is considered where estimators based on the ungrouped sample are employed in the test statistic as well as in determining the class interval end ...

What is the chi-squared test? The chi-squared test, often written as χ 2 test, is a statistical hypothesis test used in the analysis of categorical variables to determine whether observed data are ...

This is a preview. Log in through your library . Abstract A common feature of data collected in environmental and earth sciences is that they typically exhibit spatial autocorrelation. Violating the ...

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A chi-square (also called chi-squared) test is a classical statistics technique that can be used to determine if observed-count data matches expected-count data. A chi-square (also called chi-squared) ...