In All Applications of the Kruskal-Wallis Test, the Alternative Hypothesis

question 56

Multiple Choice

In all applications of the Kruskal-Wallis test, the alternative hypothesis to be tested is always stated as:

• A) the locations of all k populations are the same
• B) at least two population locations differ
• C) the locations of all w populations differ
• D) the locations of all k populations differ
• E) at least two population locations are the same

Extract and interpret sample statistics (mean, standard deviation, sample size) from research data.

Understand and apply hypothesis testing for comparing means, including understanding Type I and Type II errors.

Conduct and interpret t-tests for independent samples with either equal or unequal variances.

Understand the significance level, p-values, and their role in hypothesis testing.

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