The t distribution are ____?
A. Symmetrical
B. None of these
C. Same as Normal Curve
D. Skewed
The Mann-Whitney U test is preferred to a t-test when ____?
A. Sample are dependent
B. The assumption of normality is not met
C. Sample sizes are small
D. Data are paired
The sign test assumes that the ______?
A. Samples are independent
B. Samples have same mean
C. Sample are dependent
D. The Wilcoxon Signed Rank test is used
To perform a Runs test for randomness the data must be ______?
A. Divided into at least two classifications
B. Divided into exactly two classifications
C. Quantitative
D. Qualitative
The Spearman Rank-Correlation test requires that the ____?
A. Data must be measured on the same scale
B. Data should be of ordinal scale at least
C. Data must be distribution at least approximately as a t-distribution
D. Data must be from two independent samples
In a Wilcoxon Rank-Sum test ______?
A. Ties within one sample may affect the decision
B. Ties always affect the decision
C. Ties never affect the decision
D. Ties between the two sample may affect the decision
When using the sign test, if two scores are tied, then _____?
A. We count them
B. We discard them
C. We depends upon the scores
D. non of these
Wilcoxon Rank-Sum test can be of ______?
A. Lower tailed
B. Upper tailed
C. Either of the above
D. None of the above
Which of the following test use Rank Sums _____?
A. Kruskal-Wallis and Wilcoxon tests
B. Runs test
C. Chi-Square and sign test
D. F test
