MCQs Hypothesis Testing 2

1. In testing for the difference between two populations, it is possible to use

2. The Runs test results in rejecting the null hypothesis of randomness when

3. Comparing the times-to-failure of radar transponders made by firms A, B, and C based on an airline’s sample experience with the three types of instruments one may use

4. The Mann-Whitney U test is preferred to a t-test when

5. The sign test assumes that the

6. In a Wilcoxon Rank-Sum test

7. The Wilcoxon Signed Rank test is used

8. To perform a Runs test for randomness the data must be

9. The Wilcoxon Rank-Sum test used to compare

10. When testing for randomness, we can use

11. Which of the following tests is most likely assessing this null hypothesis: The number of violations per apartment in the population of all city apartments is binomially distributed with a probability of success in any one trial of $P=0.3$

12. The non-parametric equivalent of an unpaired samples t-test is

13. The sign test is

14. Three brands of coffee are rated for taste on a scale of 1 to 10. Six persons are asked to rate each brand so that there is a total of 18 observations. The appropriate test to determine if three brand taste equally good is

15. When using the sign test, if two scores are tied, then

16. Wilcoxon Rank-Sum test can be of

17. Which of the following test use Rank Sums

18. Which of the following test must be two-sided?

19. The Spearman Rank-Correlation test requires that the