Which of the Following Distributions Approximates the Kruskal-Wallis Test Statistic

question 114

Multiple Choice

Which of the following distributions approximates the Kruskal-Wallis test statistic H when the objective is to compare k distributions and the sample sizes are greater than or equal to 5?

• A) the normal distribution
• B) the chi-square distribution with k - 1 degrees of freedom
• C) the Student t distribution with k - 2 degrees of freedom
• D) either the chi-square distribution with k - 5 degrees of freedom or the Student's t distribution with k + 5 degrees of freedom

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