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 told that the puzzle would be easy. In truth, in one group, the puzzle had a solution (Group Solution), and in the second group, the puzzle had no solution (Group No Solution). The researchers measured stress levels and found that frustration levels were low for all participants in Group Solution and for all but a few participants who showed strikingly high levels of stress in Group No Solution.

3. A researcher measured student scores on an identical assignment to see how well students perform for different types of professors. In Group Adviser, their professor was also their adviser; in Group Major, their professor taught in their major field of study; in Group Nonmajor, their professor did not teach in their major field of study. Student scores were ranked in each class, and the differences in ranks were compared. ___________________________________

4. A researcher has the same participants rank two types of advertisements for the same product. Differences in ranks for each advertisement were compared. ___________________________________

5. A professor measures student motivation before, during, and after a statistics course in a given semester. Student motivation was ranked at each time in the semester, and the differences in ranks were compared. ___________________________________

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

Answer the following questions: What is a nonparametric test? How does a nonparametric test differ from...

Answer the following questions: What is a nonparametric test? How does a nonparametric test differ from a parametric test? What are the advantages and disadvantages of using a nonparametric test? When the sign test is used, what population parameter is being tested?

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

In your own words, explain why you would use a nonparametric test instead of a parametric...

In your own words, explain why you would use a nonparametric test instead of a parametric test. How are they different? How are they the same? Come up with a research study example for each of the different kinds of Chi square tests: no difference, goodness of fit, and test of independence.

Nonparametric Methods In this assignment, we will use the following nonparametric methods: The Wilcoxon signed-rank test:...

Nonparametric Methods In this assignment, we will use the following nonparametric methods: The Wilcoxon signed-rank test: The Wilcoxon signed-rank test is the nonparametric test analog of the paired t-test. The Wilcoxon rank-sum test or the Mann-Whitney U test: The Wilcoxon rank-sum test is an analog to the two-sample t-test for independent samples. Part 1: Wilcoxon Signed-Rank Test Let's take a hypothetical situation. The World Health Organization (WHO) wants to investigate whether building irrigation systems in an African region helped reduce...

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...

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.

Determine the Appropriate Analysis For each of the following scenarios, identify the appropriate analysis. 2. A...

Determine the Appropriate Analysis For each of the following scenarios, identify the appropriate analysis. 2. A guidance counselor at a high school wants to be best informed about the universities and colleges that students prefer most frequently. He glances at the institutions attended by last year’s graduates and notes that the three closet colleges appear to have about equal appeal. To test this assumption, he begins asking students who are planning on postsecondary schooling where they will apply. His data...

Identify examples of appropriate characteristics of culture media

Explain why the UU triaxial shear test would be the most appropriate test for simulating the...

Explain why the UU triaxial shear test would be the most appropriate test for simulating the strength of clay below an embankment at the end-of-construction.

For each of the following sets of results, compute the appropriate test statistic, test the indicated...

For each of the following sets of results, compute the appropriate test statistic, test the indicated alternative hypothesis, and compute the effects size(s) indicating their magnitude: set hypothesis 1 2 D n α a) μ1 ≠ μ2 32.6 32.1 4.2 24 0.05 b) μ1 > μ2 101.9 95 10 27 0.01 c) μ1 < μ2 74.6 70.2 6.6 24 0.10 a) Compute the appropriate test statistic(s) to make a decision about H0. critical value? = ; test statistic? = Decision?: ---Select--- Reject...

Subjects