In an experiment involving cholesterol levels in type A and type B men (http://www.sjsu.edu/faculty/gerstman/EpiInfo/cont-two.htm), the following data output was reported for a Kruskal-Wallis test Chi Square 6.333
Df 1
Asymp. Sig 0.01185
What does this result suggest?
A) There is a significant difference between the two groups, p = .011853.
B) There is no significant difference between the groups, p .05.
C) There is no significant difference between the groups, p = .011853.
D) None of the above.

Question

In an experiment involving cholesterol levels in type A and type B men (http://www.sjsu.edu/faculty/gerstman/EpiInfo/cont-two.htm), the following data output was reported for a Kruskal-Wallis test Chi Square 6.333
Df 1
Asymp. Sig 0.01185
What does this result suggest?
A) There is a significant difference between the two groups, p = .011853.
B) There is no significant difference between the groups, p > .05.
C) There is no significant difference between the groups, p = .011853.
D) None of the above.

Quizplus · Accepted Answer

The Kruskal-Wallis test is a non-parametric alternative to the ANOVA test for comparing three or more groups. The test statistic is a chi-square value and the output gives the degrees of freedom and the p-value. In this case, the output reports a chi-square value of 6.333 and a p-value of 0.01185. Since the p-value is less than the alpha level of 0.05, we reject the null hypothesis and conclude that there is a significant difference between the two groups. Therefore, the correct answer is A.

In an Experiment Involving Cholesterol Levels in Type a and Type