In a Kruskal-Wallis Test, There Are Four Samples and the Value

question 117

Multiple Choice

In a Kruskal-Wallis test, there are four samples and the value of the test statistic is calculated as H = 8.79. The most accurate statement that can be made about the p-value is that:

• A) it is greater than 0.10
• B) it is greater than 0.05 but smaller than 0.10
• C) it is greater than 0.05
• D) it is greater than 0.025 but smaller than 0.05
• E) it is less than 0.025

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Definitions:

Matched Pairs

An experimental design where pairs of subjects are matched based on certain criteria to compare effects of different treatments.

Population of Differences

Refers to the set of differences obtained by subtracting one set of values from another, often used in paired samples analysis.

Paired-Difference T-Test

A statistical method used to compare two related or paired groups by analyzing the differences within each pair.

Wilcoxon Signed-Rank Test

A statistical test not based on parameter assumptions that is employed to evaluate two related samples, matched samples, or repeated observations within the same sample to determine if there is a difference in their population mean ranks.