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Section 14.11 Glossary
normal probability plot
A plot that compares observed values with the quantiles of a normal distribution to see how closely the data follow a normal distribution.
independent sample \(t\) test
A method for computing the p-value of an observed difference between the means of two independent groups.
\(t\) distribution
A distribution used to model the sampling distribution of a difference in means under the null hypothesis that the difference is 0, as well as the sampling distribution of transformed correlations.
chi-squared distribution
A distribution used to model the sampling distribution of the chi-squared statistic.
chi-squared statistic
A test statistic that quantifies the magnitude of the difference between two discrete distributions.
