Describe the Mann-Whitney nonparametric U test. Be sure to say when it is appropriate as a...

Describe the Mann-Whitney nonparametric U test. Be sure to say when it is appropriate as a statistical test

Expert Solution

orchestra answered 2 years ago

For each of the following nonparametric tests––Wilcoxon signed-rank test, Mann–Whitney U test, and Spearman’s rho––discuss the...

For each of the following nonparametric tests––Wilcoxon signed-rank test, Mann–Whitney U test, and Spearman’s rho––discuss the following points: Give an overview of the test. State what parametric test it replaces. Provide an example of when you would choose to use that test.

MANN-WHITNEY TWO SAMPLE TEST (a)Describe Mann-Whitney two sample test brieﬂy. How does it do it? (b)...

MANN-WHITNEY TWO SAMPLE TEST (a)Describe Mann-Whitney two sample test brieﬂy. How does it do it? (b) State the null and the alternative hypothesis. (c) State the assumptions. (d) State the formula for the test statistic. (e) State the rejection rule with (How to reject the null hypothesis) (f) Give an real life example of how we can use Mann-Whitney two sample test (with calculations).

How are the critical values for the Mann-Whitney U test used differently than critical values for...

How are the critical values for the Mann-Whitney U test used differently than critical values for parametric tests?

Explain how the Mann-Whitney U-test is similar to a t-test for independent groups. Which other non-parametric...

Explain how the Mann-Whitney U-test is similar to a t-test for independent groups. Which other non-parametric test (that we learned in this course) is similar to the t-test for correlated groups?

Write down the applications of following... Mann Whitney U Kolmogorov smirnov kruskal wallis test two way...

Write down the applications of following... Mann Whitney U Kolmogorov smirnov kruskal wallis test two way anova Correct answer is required otherwise i will dis like

Identify the appropriate nonparametric test for each of the following examples and explain why a nonparametric...

Identify the appropriate nonparametric test for each of the following examples and explain why a nonparametric test is appropriate. 1. A researcher measures fear as the time it takes to walk across a presumably scary portion of campus. The times (in seconds) that it took a sample of 12 participants were 8, 12, 15, 13, 12, 10, 6, 10, 9, 15, 50, and 52. 2. Two groups of participants were given 5 minutes to complete a puzzle. The participants were...

Most people believe you shouldn’t use a Mann-Whitney test if the data is interval/ratio, symmetric, and...

Most people believe you shouldn’t use a Mann-Whitney test if the data is interval/ratio, symmetric, and normal. They think a t-test is better. Why might this be? When can a z-test successfully be used instead of a chi-square test (for the same data)?

Analyze the similarities and differences between parametric and nonparametric tests, and justify when is it appropriate...

Analyze the similarities and differences between parametric and nonparametric tests, and justify when is it appropriate to run a nonparametric test and when it is not, while identifying three parametric tests and nonparametric equivalents in your analysis.

Read the scenario and pick the most appropriate nonparametric statistical test (assume several assumptions of parametric...

Read the scenario and pick the most appropriate nonparametric statistical test (assume several assumptions of parametric tests were violated). Imagine that marketing researchers working for a food company want to determine whether children would prefer ketchup of a different color. They develop green and blue to compare to their standard red (all taste the same). They have children taste all three colors of ketchups (a correlated-groups design) and rank each on a scale of 1 – 10. Answer: A researcher...

Describe the conditions in which a nonparametric test would be a better selection than a parametric...

Describe the conditions in which a nonparametric test would be a better selection than a parametric test. Illustrate your ideas with a specific example of when you would use each type of test using similar variables for each example.

Question