Using the following data, calculate both the F-value and the Kruskal-Wallis statistic as presented in Question 4, without adjusting. Compare the two results.
Similarly, the KW statistic is given by summing the ranks of the different groups, so that we get
Thus, comparing F with F.05,2,12 = 3.89, the critical value leads us to reject the null hypothesis.
Comparing H with the chi-squared2 = 5.991, so that we fail to reject the null hypothesis.
Sometimes the lack of power associated with a nonparametric test prevents us from rejecting the
null hypothesis.
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The Supreme Court's decision in Brown v. Board of Education (1954) ended segregation in schools across the nation almost immediately.
The European continent was divided for the most part of the second half of the 20th century by
a. the wall. b. the iron curtain. c. the north vs. south barrier. d. racial divisions. e. ideological agreements.
Why are the boundaries of congressional districts redrawn after each census?
a. to equalize the number in each district while maintaining the size of the House at 435 b. to maintain relative regularity in the shape of the districts c. to equalize the number of districts, and thus members of Congress, from each state d. to ensure equal representation for each political party in the state
Which of the following excludes those who are not legally eligible to vote?
A) voting-age population B) non-voting population C) VAP D) voting-eligible population E) political participants