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Multiple Choice and True/False Quiz
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1.
Which of the following nonparametric tests requires that we carry out a paired difference experiment?
A)Wilcoxon Signed Ranks test
B)Sign test
C)Kruskall-Wallis test
D)Wilcoxon Rank Sum test
2.
Nonparametric tests do not extend easily to:
A)Paired difference t-tests
B)One-way ANOVA F test.
C)Multiple regression
D)F test for equality of population variance
E)Two independent sample t test
3.
Which one of the following nonparametric methods can be used to compare more than two populations (in a single test)?
A)Wilcoxon Signed Ranks test
B)Sign test
C)Kruskall-Wallis test
D)Wilcoxon Rank Sum test
E)Spearman's test
4.
Which one of the following nonparametric methods can be considered an extension of the Wilcoxon Rank Sum test?
A)Wilcoxon Signed Ranks test
B)Sign test
C)Kruskall-Wallis test
D)Spearman's test
5.
Which one of the following nonparametric methods can be used to test the strength of the relationship between two variables?
A)Wilcoxon Signed Ranks test
B)Sign test
C)Kruskall-Wallis test
D)Wilcoxon Rank Sum test
E)Spearman's test
6.
The Kruskall-Wallis test is the nonparametric counterpart of the
A)large sample test about a single population mean.
B)two independent samples t test.
C)one way ANOVA F test.
D)paired difference t test.
E)F test for equality of population variances.
7.
The sign test is the nonparametric counterpart of the
A)one sample t test.
B)two independent samples t test.
C)one-way ANOVA F test.
D)paired difference t test.
E)F test for equality of population variances.
8.
The _______________ is a general test that employs independent samples to detect whether the probability distribution of one population is shifted to the right or left of the probability distribution of another population.
A)Sign test
B)Wilcoxon Rank Sum test
C)Wilcoxon Signed Ranks test
D)Kruskal-Wallis test
E)Spearman's Rank Correlation test
9.
Nonparametric tests can be more powerful (that is, better correctly detect significant differences) than the corresponding t or F tests if the population distribution is highly skewed or nonnormal.
A)True
B)False
10.
The Wilcoxon rank sum test is a nonparametric test used to compare the central tendencies of two populations that share a sample.
A)True
B)False
11.
The Wilcoxon rank sum test and the Kruskall Wallis test both require that we take independent random samples.
A)True
B)False
12.
Parametric tests such as F and t tests are more powerful than their nonparametric counterparts, when the sampled populations are normally distributed.
A)True
B)False





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