Question 1

In the Kruskal-Wallis test for the following data,what is the sum of the ranks for Sample 1?

Accepted Answer

A) 9 
B) 163 
C) 3 
D) 23 
A) 9 
B) 163 
C) 3 
D) 23

Question 2

This nonparametric test requires at least ordinal level data. It is used if the assumptions required for the paired t-test cannot be met. Which test is it?

Accepted Answer

A) Wilcoxon signed-rank 
B) ANOVA 
C) Rank correlation 
D) Kruskal-Wallis 
A) Wilcoxon signed-rank 
B) ANOVA 
C) Rank correlation 
D) Kruskal-Wallis

Question 3

We can apply nonparametric tests to problems involving interval or ratio data.

Accepted Answer

A) True 
 B)False

Question 4

In the Kruskal-Wallis test,the degrees of freedom are ________.

Accepted Answer

A) the total number of observations less one 
B) the total number of observations 
C) the number of populations less one 
D) each sample size less one 
A) the total number of observations less one 
B) the total number of observations 
C) the number of populations less one 
D) each sample size less one

Question 5

For small samples,the test statistic for the sign test is the z-statistic.

Accepted Answer

A) True 
 B)False

Question 6

A nonparametric test ________.

Accepted Answer

A) assumes that the populations are normally distributed 
B) assumes that the populations have equal standard deviations 
C) makes no assumptions about the population distributions 
D) assumes that the populations follow a standard normal distribution 
A) assumes that the populations are normally distributed 
B) assumes that the populations have equal standard deviations 
C) makes no assumptions about the population distributions 
D) assumes that the populations follow a standard normal distribution

Question 7

Fifty-five voters from a sample of 80 indicated that they favored casino gambling in their city. The city council is interested in finding out whether or not there is a significant difference between the proportions of those favoring and not favoring casino gambling in their community. μ in this scenario is ________.

Accepted Answer

A) 55 
B) 80 
C) 40 
D) 25 
A) 55 
B) 80 
C) 40 
D) 25

Question 8

To apply the large-sample procedure for the sign test,the sample size should be at least ________.

Accepted Answer

A) 2 
B) 8 
C) 100 
D) 10 
A) 2 
B) 8 
C) 100 
D) 10

Question 9

The Wilcoxon signed-rank test can replace the paired t-test when the assumptions for t cannot be met.

Accepted Answer

A) True 
 B)False

Question 10

A study was conducted on the percent of total advertising dollars spent by 10 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 sum of the differences in ranks?

Accepted Answer

A) 128 
B) 100 
C) 0 
D) 1 
A) 128 
B) 100 
C) 0 
D) 1

Question 11

A Spearman's rank-order correlation coefficient of 0.91 indicates a very weak relationship.

Accepted Answer

A) True 
 B)False

Question 12

Twenty-five college seniors were given two brands of organic hamburgers to sample: Burger A and Burger B. Four students preferred Burger A and 21 preferred Burger B. A statistician wants to determine if one of the burgers is preferred over the other. To test the null hypothesis,which of the following probability distributions is used?

Accepted Answer

A) Poisson 
B) Chi-square 
C) Standard normal 
D) Binomial 
A) Poisson 
B) Chi-square 
C) Standard normal 
D) Binomial

Question 13

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?

Accepted Answer

A) −6.2080 
B) 6.2080 
C) 1.960 
D) 2.262 
A) −6.2080 
B) 6.2080 
C) 1.960 
D) 2.262

Question 14

The following are the ratings (0 to 4)given by 12 individuals for two possible new flavors of soft drinks.   Wilcoxon rank-sum is to be used. What is the sum of the ranks for flavor #1?

Accepted Answer

A) 144 
B) 139 
C) 156 
D) 153 
A) 144 
B) 139 
C) 156 
D) 153

Question 15

What is the first step in applying the sign test?

Accepted Answer

A) Rank the paired data from high to low or vice versa. 
B) Apply a correction factor to each observation. 
C) Determine the sign of difference between each observed pair of data. 
D) Determine the number of degrees of freedom. 
A) Rank the paired data from high to low or vice versa. 
B) Apply a correction factor to each observation. 
C) Determine the sign of difference between each observed pair of data. 
D) Determine the number of degrees of freedom.

Question 16

A hypothesis test that rho is zero is conducted at the 5% level of significance. If Spearman's (rho)is 0.86 for a sample of 15 observations,what is the computed value of the t-statistic?

Accepted Answer

A) 0.456 
B) 6.08 
C) 0.425 
D) 2.16 
A) 0.456 
B) 6.08 
C) 0.425 
D) 2.16

Question 17

In the Kruskal-Wallis test for the following data,what is the sum of the ranks for Sample 3?

Accepted Answer

A) 9 
B) 80 
C) 3 
D) 23 
A) 9 
B) 80 
C) 3 
D) 23

Question 18

The Spearman coefficient of rank correlation is a ________.

Accepted Answer

A) measure of correlation used to determine whether several population means are equal 
B) measure of the association between sets of ranked data 
C) measure of correlation based on the sign of a difference between two related observations 
D) goodness-of-fit test used to test for normality 
A) measure of correlation used to determine whether several population means are equal 
B) measure of the association between sets of ranked data 
C) measure of correlation based on the sign of a difference between two related observations 
D) goodness-of-fit test used to test for normality

Question 19

A sign test is a ________.

Accepted Answer

A) parametric method used to determine the differences between two related observations 
B) nonparametric method based on the sign of a difference between two related observations 
C) nonparametric method that uses the chi-square distributions as the test statistic 
D) parametric method for determining the differences between related observations where distribution dependent tests are used 
A) parametric method used to determine the differences between two related observations 
B) nonparametric method based on the sign of a difference between two related observations 
C) nonparametric method that uses the chi-square distributions as the test statistic 
D) parametric method for determining the differences between related observations where distribution dependent tests are used

Question 20

A nonparametric test requires that the data can be ________.

Accepted Answer

A) ranked 
B) summed 
C) graphed 
D) transformed 
A) ranked 
B) summed 
C) graphed 
D) transformed

In the Kruskal-Wallis test for the following data,what is the sum of the ranks for Sample 1?

This nonparametric test requires at least ordinal level data. It is used if the assumptions required for the paired t-test cannot be met. Which test is it?

We can apply nonparametric tests to problems involving interval or ratio data.

In the Kruskal-Wallis test,the degrees of freedom are ________.

For small samples,the test statistic for the sign test is the z-statistic.

A nonparametric test ________.

To apply the large-sample procedure for the sign test,the sample size should be at least ________.

The Wilcoxon signed-rank test can replace the paired t-test when the assumptions for t cannot be met.

A study was conducted on the percent of total advertising dollars spent by 10 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 sum of the differences in ranks?

A Spearman's rank-order correlation coefficient of 0.91 indicates a very weak relationship.

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?

The following are the ratings (0 to 4)given by 12 individuals for two possible new flavors of soft drinks. Wilcoxon rank-sum is to be used. What is the sum of the ranks for flavor #1?

What is the first step in applying the sign test?

A hypothesis test that rho is zero is conducted at the 5% level of significance. If Spearman's (rho)is 0.86 for a sample of 15 observations,what is the computed value of the t-statistic?

In the Kruskal-Wallis test for the following data,what is the sum of the ranks for Sample 3?

The Spearman coefficient of rank correlation is a ________.

A sign test is a ________.

A nonparametric test requires that the data can be ________.

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

Exam 16: Nonparametric Methods: Analysis of Ordinal Data

In the Kruskal-Wallis test for the following data,what is the sum of the ranks for Sample 1?

This nonparametric test requires at least ordinal level data. It is used if the assumptions required for the paired t-test cannot be met. Which test is it?

We can apply nonparametric tests to problems involving interval or ratio data.

In the Kruskal-Wallis test,the degrees of freedom are ________.

For small samples,the test statistic for the sign test is the z-statistic.

A nonparametric test ________.

To apply the large-sample procedure for the sign test,the sample size should be at least ________.

The Wilcoxon signed-rank test can replace the paired t-test when the assumptions for t cannot be met.

A study was conducted on the percent of total advertising dollars spent by 10 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 sum of the differences in ranks?

A Spearman's rank-order correlation coefficient of 0.91 indicates a very weak relationship.

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?

The following are the ratings (0 to 4)given by 12 individuals for two possible new flavors of soft drinks. Wilcoxon rank-sum is to be used. What is the sum of the ranks for flavor #1?

What is the first step in applying the sign test?

A hypothesis test that rho is zero is conducted at the 5% level of significance. If Spearman's (rho)is 0.86 for a sample of 15 observations,what is the computed value of the t-statistic?

In the Kruskal-Wallis test for the following data,what is the sum of the ranks for Sample 3?

The Spearman coefficient of rank correlation is a ________.

A sign test is a ________.

A nonparametric test requires that the data can be ________.

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters