The Nonparametric Test for Two Population Medians Under Independent Sampling

question 47

Multiple Choice

The nonparametric test for two population medians under independent sampling is known as ________.

• A) Wilcoxon signed-rank test
• B) Wilcoxon rank-sum test
• C) Kruskal-Wallis test
• D) Wald-Wolfowitz runs test

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the values differ from the mean of the data set.

Negative Value

A negative value represents a number less than zero, often indicating a deficit or reduction in mathematical and statistical contexts.

Normal Distribution

A bell-shaped probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence.

Mean

The average value of a set of numbers, calculated by dividing the sum of all values by the number of values.