Exam 16: Nonparametric Methods: Analysis of Ordinal Data

If Spearman's rank correlation statistic is -0.91 with a sample size of 10, what is the test statistic value to test the hypothesis that the rank correlation coefficient is zero?

In a market research study involving 11 people, 7 preferred Product X, 3 preferred Product Y, and 1 expressed no preference. A sign test is selected using the 0.05 level of significance. What is the null hypothesis?

A nonparametric test is also called a __________ test.

In a market research study involving 11 people, 7 preferred Product X, 3 preferred Product Y, and 1 expressed no preference. A sign test is selected using the 0.05 level of significance. What is the alternate hypothesis?

A study was conducted on the percent of total advertising dollars spent by ten local firms for advertising in the press and on cable television. Results were ranked with a resulting sum of squared differences equal to 128. What is the computed value of t?

A study was conducted on the percent of total advertising dollars spent by ten local firms for advertising in the press and on cable television. Results were ranked with a resulting sum of squared differences equal to 128. What is Spearman's coefficient of rank correlation?

Why is the nonparametric sign test appropriate for testing a hypothesis about the median?

Two movie reviewers gave their ratings (0 to 4 stars) to seven movies released this past month as follows: The Wilcoxon signed-rank test of difference is to be used. What is the test statistic?

Which statement is true when using the sign test and a large sample?

A nonparametric test:

Which of the following values of Spearman's (rho) indicates the strongest relationship between two variables?

The Wilcoxon rank-sum compares two populations based on the sum of the ________.

In a market research study involving nine people, seven preferred Product X and two preferred Product Y. A sign test is selected using the 0.10 level of significance. What is the decision rule if the test statistic is the number of people preferring Product X?

A sign test is a:

The Wilcoxon rank-sum method tests for equality between two _____________ populations.

The Kruskal-Wallis test is the nonparametric analogy to a one-way ________.

Two movie reviewers gave their ratings (0 to 4 stars) to ten movies released this past month as follows: The rank order correlation is to be used. What is the null hypothesis for rank order correlation?

A soap manufacturer is experimenting with several formulas of soap powder. Three of the formulas were selected for further testing by a panel of homemakers. The ratings for the three formulas are as follows: The soap manufacturer decided to use the Kruskal-Wallis test. What is the null hypothesis?