Consider the following to answer the question(s) below:
Assume that a Kruskal-Wallis test is being conducted to determine whether or not the medians of three populations are equal. The sum of rankings and the sample size for each group are below.
Group 1 Group 2 Group 3
T1 = 60 T2 = 36 T3 = 24
n1 = 6 n2 = 5 n3 = 4
-What is the critical value for α = 0.05?
A) 5.9915
B) 0.1026
C) 7.3778
D) 7.8147
E) 9.34884

Question

Quizplus · Accepted Answer

To find the critical value at α = 0.05, we need to use the Kruskal-Wallis table with (k – 1) degrees of freedom, where k is the number of samples or groups being tested. In this case, k = 3. From the table, the critical value at α = 0.05 and (k – 1) = 2 degrees of freedom is 5.9915. Therefore, the answer is A.

Consider the Following to Answer the Question(s) Below