Which of the Following Statements About the Kruskal-Wallis Test Are

question 34

Multiple Choice

Which of the following statements about the Kruskal-Wallis test are FALSE?

• A)The test involves random samples of sizes From I populations.
• B)The I samples must be independent.
• C)The I populations must have a common standard deviation,  .
• D)The test essentially applies the one-way ANOVA to the ranks of the observations rather than to the original observations themselves.
• E)The test statistic H has,approximately,a chi-square distribution with I - 1 degrees of freedom.

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Definitions:

Null Hypothesis

A proposal in statistics that suggests no observable effect or no association between variables, serving as a premise to be tested against experimental evidence.

Groups

Collections of individuals or items that are studied in research to observe, measure, and analyze certain behaviors or outcomes.

Critical Value

The threshold value that the test statistic must exceed in order to reject the null hypothesis in a statistical test.

Groups

Collections of subjects, participants, or data points that are studied and compared in research to assess the impact of varying conditions.