A Nonparametric Method to Compare Two or More Populations,when the Samples

question 42

Multiple Choice

A nonparametric method to compare two or more populations,when the samples are matched pairs and the data are either ranked or quantitative but not normal is the:

• A) Wilcoxon signed rank test.
• B) Wilcoxon rank sum test.
• C) Friedman test.
• D) Kruskal-Wallis test.
• E) Sign test for comparing paired samples.

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Definitions:

ECG

A test that records the electrical activity of the heart to detect heart problems, also known as an electrocardiogram.

Recording Electrodes

Devices used to detect and measure electrical potentials on the body’s surface, commonly used in electrocardiograms and other physiological recordings.

Ventricles

Lower chambers of the heart that receive blood from the atria and pump it out to the lungs and the rest of the body.

ECG

Electrocardiogram; a diagnostic tool that measures and records the electrical activity of the heart, helping detect heart abnormalities.