Examlex
A researcher wants to know if there is a relationship between region of birth and political party affiliation. She should calculate a________.
Wilcoxon Rank Sum Test
A nonparametric statistical test used to compare two independent samples to assess whether their population mean ranks differ.
Alternative Hypothesis
The hypothesis that suggests there is a significant difference between two variables, contrary to the null hypothesis.
Populations
In statistics, this term refers to the entire pool from which a statistical sample is drawn and is the subject of a study.
Caffeinated Beverages
Drinks that contain caffeine, a stimulant that can affect the central nervous system.
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