Pt2 theory

Question 1

16. Which of the following is a parametric test?
    a) Chi-square test
    b) Mann-Whitney U test
    c) Wilcoxon signed-rank test
    d) ANOVA
    e) Kruskal-Wallis test

Answer 1

d

Question 2

17. Which of the following is a non-parametric test?
    a) t-test
    b) Pearson correlation
    c) Linear regression
    d) Spearman’s rank correlation
    e) ANOVA

Answer 2

d

Question 3

18. When would you use a non-parametric test instead of a parametric test?
    a) When the sample size is very large.
    b) When the data are normally distributed.
    c) When the data do not meet the assumptions required for parametric tests.
    d) When the population standard deviation is known.
    e) When comparing means of two groups.

Answer 3

c

Question 4

19. Which non-parametric test is used as an alternative to the paired t-test?
    a) Mann-Whitney U test
    b) Wilcoxon signed-rank test
    c) Kruskal-Wallis test
    d) Chi-square test
    e) Friedman test

Answer 4

b

Question 5

20. Which of the following is true about the Mann-Whitney U test?
    a) It compares two independent samples.
    b) It compares two paired samples.
    c) It assumes the data are normally distributed.
    d) It compares more than two groups.
    e) It is used to test for correlation.

Answer 5

a

Question 6

21. Which parametric test would you use to compare the means of three or more independent groups?
    a) Paired t-test
    b) Independent t-test
    c) One-way ANOVA
    d) Mann-Whitney U test
    e) Kruskal-Wallis test

Answer 6

c

Question 7

22. Which non-parametric test would you use to compare the medians of three or more independent groups?
    a) Paired t-test
    b) Independent t-test
    c) One-way ANOVA
    d) Mann-Whitney U test
    e) Kruskal-Wallis test

Answer 7

e

Question 8

23. What is the primary advantage of non-parametric tests over parametric tests?
    a) They are more powerful.
    b) They require smaller sample sizes.
    c) They do not require assumptions about the distribution of the data.
    d) They are simpler to perform.
    e) They always provide more accurate results.

Answer 8

c

Question 9

24. Which of the following tests would you use to analyze the relationship between two categorical variables?
    a) Pearson correlation
    b) Spearman’s rank correlation
    c) Chi-square test for independence
    d) t-test
    e) One-way ANOVA

Answer 9

c

Question 10

25. Which parametric test would you use to test if the means of two related groups are different?
    a) Independent t-test
    b) Paired t-test
    c) One-way ANOVA
    d) Chi-square test
    e) Kruskal-Wallis test

Answer 10

b

Question 11

list all learnt parametric test

Answer 11

Z-test
T-test
Paired t-test
One way ANOVA