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Category > Math Posted 23 Apr 2017 My Price 9.00

The degrees of freedom for this critical value of F

1. An ANOVA procedure is applied to data obtained from 5 samples where each sample contains 30 observations. The degrees of freedom for this critical value of F are (10.0分)

 A.,

 B.Df1 , DF2 = 145

 C., DF2 = 145

 D.,

2.In an ANOVA problem involving 4 groups and 5 observations per group, SSE = 160. The MSE for this situation is(10.0分)

 A.10.67

 B.8

 C.14.8

 D.10

3.The critical F value with 5 numerator and 60 denominator degrees of freedom at α = 0.05 is (10.0分)

 A.2.37

 B.2.25

 C.3.74

 D.1.96

4.The Wilcoxon Rank Sum test and the Kruskal-Wallis test both require that we take independent random samples. (10.0分)

 A.False

 B.True

5. In an ANOVA problem if SST = 160, and SSR = 80, then SSE is(10.0分)

 A.200

 B.80

 C.40

 D.120

 

6. The Kruskal-Wallis test is the nonparametric counterpart of the(10.0分)

 A.one sample test for a single population mean

 B.paired difference t test.

 C.one-way ANOVA F test

 D.two independent samples t test to compare two population means

 E.F test for equality of population variances

7. Parametric tests such as F and t tests are more powerful than their nonparametric counterparts when the sampled populations are normally distributed.(10.0分)

 A.False

 B.True

8. In a social psychology experiment a small group of subjects and a large group of subjects worked independently to rank order the appeal of a set of twenty photographs. To compare the small group's rankings to the large group's rankings I should use(10.0分)

 A.The Wilcoxon Rank Sum test.

 B.the t-test.

 C.the Chi-square

 D.Fisher’s exact test

9. Which one of the following is nonparametric method that can be used to compare more than two populations simultaneously?(10.0分)

 A.The Kruskal-Wallis test.

 B.T test

 C.ANOVA

 D.The Wilcoxon Rank Sum test.

10. If you have dependent samples of ranked data, which nonparametric statistic should you use?(10.0分)

 A.The Wilcoxon Rank Sum test

 B.the Chi-square

 C.a one-way ANOVA

 D.the Fisher’s exact test

 

 

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Status NEW Posted 23 Apr 2017 09:04 AM My Price 9.00

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