A Nonparametric Method to Compare Two Populations, When the Samples

question 124

Multiple Choice

A nonparametric method to compare two populations, when the samples are matched pairs and the data are ordinal, is the:

• A) Wilcoxon signed rank sum test
• B) sign test
• C) Wilcoxon rank sum test
• D) matched pairs t-test
• E) chi-square test

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Definitions:

Fluctuation

An irregular rising and falling in number or amount; a variation.

Expectations

Beliefs or anticipations about the future, often based on experience, knowledge, or perceived trends.

Illicit Drug

A substance whose production, sale, or use is prohibited by law, often associated with addiction and illegal trade.

Endorphins

Natural chemicals in the body that fight pain and promote feelings of pleasure and well-being.