Question 1

The Mann-Whitney U test is implemented differently for small samples than for large samples.

Accepted Answer

A) True 
 B)False  True

Question 2

A local pediatrician office is interested in the 'no-show' appointment count for each of the 4 pediatricians.'No-show' appointments represent lost revenues because the physician will be
Idle when patients do not show for their scheduled appointments.Using the data in the table
Below and an alpha of .10,what is the appropriate decision?

Accepted Answer

A) Reject the null hypothesis and conclude at least one physician differs in the no-show rates. 
B) Reject the null hypothesis and conclude the no show rates differ by day of week 
C) Fail to reject the null hypothesis and conclude there is not enough evidence to demonstrate the no show rate between physician is equal 
D) Fail to reject the null hypothesis and conclude there is not enough evidence to show the no show rate between days of the week is equal 
E) Reject the null hypothesis and conclude the no show rates are dependent upon both day of week and physician. 
A) Reject the null hypothesis and conclude at least one physician differs in the no-show rates. 
B) Reject the null hypothesis and conclude the no show rates differ by day of week 
C) Fail to reject the null hypothesis and conclude there is not enough evidence to demonstrate the no show rate between physician is equal 
D) Fail to reject the null hypothesis and conclude there is not enough evidence to show the no show rate between days of the week is equal 
E) Reject the null hypothesis and conclude the no show rates are dependent upon both day of week and physician. A

Question 3

In the Wilcoxon test of the differences between two populations,the value z statistic was calculated to be 1.80.If the level of significance is 0.10,which of the following decisions is appropriate?

Accepted Answer

A) Reject the null hypothesis 
B) Do not reject the null hypothesis 
C) Indeterminate without the sample size 
D) Indeterminate without all of the data 
E) Inconclusive 
A) Reject the null hypothesis 
B) Do not reject the null hypothesis 
C) Indeterminate without the sample size 
D) Indeterminate without all of the data 
E) Inconclusive A

Question 4

The methods of parametric statistics require ________________.

Accepted Answer

A) interval or ratio data 
B) nominal or ordinal data 
C) large samples 
D) small samples 
E) qualitative data 
A) interval or ratio data 
B) nominal or ordinal data 
C) large samples 
D) small samples 
E) qualitative data

Question 5

Performance records for 18 salespersons are selected to investigate whether compensation methods are a significant motivational factor.   
A Kruskal-Wallis test is to be performed with $\alpha$= 0.01.The critical chi-square value is _______.

Accepted Answer

A) 15.086 
B) 13.277 
C) 7.779 
D) 9.210 
E) 8.657 
A) 15.086 
B) 13.277 
C) 7.779 
D) 9.210 
E) 8.657

Question 6

The appropriate test for comparing the means of two populations using ordinal-level data from two independent samples is the Mann-Whitney U test.

Accepted Answer

A) True 
 B)False

Question 7

The nonparametric counterpart of the t test to compare the means of two independent populations is the _______.

Accepted Answer

A) chi-square goodness of fit test 
B) chi-square test of independence 
C) Mann-Whitney U test 
D) Wilcoxon test 
E) Friedman test 
A) chi-square goodness of fit test 
B) chi-square test of independence 
C) Mann-Whitney U test 
D) Wilcoxon test 
E) Friedman test

Question 8

The nonparametric alternative to the one-way analysis of variance is the _______.

Accepted Answer

A) chi-square goodness of fit test 
B) Kruskal-Wallis test 
C) Mann-Whitney U test 
D) Wilcoxon test 
E) Friedman test 
A) chi-square goodness of fit test 
B) Kruskal-Wallis test 
C) Mann-Whitney U test 
D) Wilcoxon test 
E) Friedman test

Question 9

Performance records for 18 salespersons are selected to investigate whether compensation methods are a significant motivational factor.   
A Kruskal-Wallis test is to be performed with $\alpha$ = 0.01.The calculated K value is _______.

Accepted Answer

A) 15.086 
B) 1.715 
C) 7.779 
D) 9.210 
E) 8.657 
A) 15.086 
B) 1.715 
C) 7.779 
D) 9.210 
E) 8.657

Question 10

The nonparametric alternative to analysis of variance for a randomized block design is the Friedman test.

Accepted Answer

A) True 
 B)False

Question 11

The nonparametric alternative to linear regression is the Kruskal-Wallis test.

Accepted Answer

A) True 
 B)False

Question 12

The Wilcoxon test was used on 16 pairs of data.The total of the ranks (T)were computed to be 76 (for + ranks)and 60 (for - ranks).The z value for this test is _____.

Accepted Answer

A) -0.41 
B) -0.02 
C) 0.02 
D) 16 
E) -0.041. 
A) -0.41 
B) -0.02 
C) 0.02 
D) 16 
E) -0.041.

Question 13

The null hypothesis in the Kruskal-Wallis test is _______.

Accepted Answer

A) all populations are identical 
B) all sample means are different 
C) x and y are not correlated 
D) the mean difference is zero 
E) all populations are not identical 
A) all populations are identical 
B) all sample means are different 
C) x and y are not correlated 
D) the mean difference is zero 
E) all populations are not identical

Question 14

Which of the following tests should be used to compare the means of three populations if the sample data is ordinal?

Accepted Answer

A) one-way analysis of variance 
B) Kruskal-Wallis test 
C) Wilcoxon test 
D) Mann-Whitney test 
E) Friedman test 
A) one-way analysis of variance 
B) Kruskal-Wallis test 
C) Wilcoxon test 
D) Mann-Whitney test 
E) Friedman test

Question 15

Prior to computing a Friedman test,the data are ranked within each block from smallest to largest.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following tests might be used to compare the means of two populations if the samples are related?

Accepted Answer

A) Mann-Whitney test 
B) Wilcoxon test 
C) Runs test 
D) Spearman's test 
E) Kruskal-Wallis test 
A) Mann-Whitney test 
B) Wilcoxon test 
C) Runs test 
D) Spearman's test 
E) Kruskal-Wallis test

Question 17

Statistical techniques based on assumptions about the population from which the sample data are selected are called _______.

Accepted Answer

A) population statistics 
B) parametric statistics 
C) nonparametric statistics 
D) chi-square statistics 
E) correlation statistics 
A) population statistics 
B) parametric statistics 
C) nonparametric statistics 
D) chi-square statistics 
E) correlation statistics

Question 18

A local pediatrician office is interested in the 'no-show' appointment count for each of the 4 pediatricians.'No-show' appointments represent lost revenues because the physician will be
Idle when patients do not show for their scheduled appointments.Using the data in the table
Below and an alpha of .10,what is the critical value of χ2?

Accepted Answer

A) 4.61 
B) 6.25 
C) 7.78 
D) 13.28 
E) 15.09 
A) 4.61 
B) 6.25 
C) 7.78 
D) 13.28 
E) 15.09

Question 19

Nonparametric statistics are sometimes called distribution-dependent statistics.

Accepted Answer

A) True 
 B)False

Question 20

The HYPERLINK "http://www.statisticssolutions.com/mann-whitney-u-test" Mann-Whitney U-test requires that the two samples under consideration have the same number of observations.

Accepted Answer

A) True 
 B)False

The Mann-Whitney U test is implemented differently for small samples than for large samples.

In the Wilcoxon test of the differences between two populations,the value z statistic was calculated to be 1.80.If the level of significance is 0.10,which of the following decisions is appropriate?

The methods of parametric statistics require ________________.

The appropriate test for comparing the means of two populations using ordinal-level data from two independent samples is the Mann-Whitney U test.

The nonparametric counterpart of the t test to compare the means of two independent populations is the _______.

The nonparametric alternative to the one-way analysis of variance is the _______.

The nonparametric alternative to analysis of variance for a randomized block design is the Friedman test.

The nonparametric alternative to linear regression is the Kruskal-Wallis test.

The Wilcoxon test was used on 16 pairs of data.The total of the ranks (T)were computed to be 76 (for + ranks)and 60 (for - ranks).The z value for this test is _____.

The null hypothesis in the Kruskal-Wallis test is _______.

Which of the following tests should be used to compare the means of three populations if the sample data is ordinal?

Prior to computing a Friedman test,the data are ranked within each block from smallest to largest.

Which of the following tests might be used to compare the means of two populations if the samples are related?

Statistical techniques based on assumptions about the population from which the sample data are selected are called _______.

Nonparametric statistics are sometimes called distribution-dependent statistics.

The HYPERLINK "http://www.statisticssolutions.com/mann-whitney-u-test" Mann-Whitney U-test requires that the two samples under consideration have the same number of observations.

Introduction to Statistics

Charts and Graphs

Descriptive Statistics

Probability

Discrete Distributions

Continuous Distributions

Sampling and Sampling Distributions

Statistical Inference: Estimation for Single Populations

Statistical Inference: Hypothesis Testing for Single Populations

Statistical Inferences About Two Populations

Analysis of Variance and Design of Experiments

Simple Regression Analysis and Correlation

Multiple Regression Analysis

Building Multiple Regression Models

Time-Series Forecasting and Index Numbers

Analysis of Categorical Data

Statistical Quality Control

Decision Analysis

Filters

Exam 17: Nonparametric Statistics

The Mann-Whitney U test is implemented differently for small samples than for large samples.

In the Wilcoxon test of the differences between two populations,the value z statistic was calculated to be 1.80.If the level of significance is 0.10,which of the following decisions is appropriate?

The methods of parametric statistics require ________________.

Performance records for 18 salespersons are selected to investigate whether compensation methods are a significant motivational factor. A Kruskal-Wallis test is to be performed with α\alphaα = 0.01.The critical chi-square value is _______.

The appropriate test for comparing the means of two populations using ordinal-level data from two independent samples is the Mann-Whitney U test.

The nonparametric counterpart of the t test to compare the means of two independent populations is the _______.

The nonparametric alternative to the one-way analysis of variance is the _______.

Performance records for 18 salespersons are selected to investigate whether compensation methods are a significant motivational factor. A Kruskal-Wallis test is to be performed with α\alphaα = 0.01.The calculated K value is _______.

The nonparametric alternative to analysis of variance for a randomized block design is the Friedman test.

The nonparametric alternative to linear regression is the Kruskal-Wallis test.

The Wilcoxon test was used on 16 pairs of data.The total of the ranks (T)were computed to be 76 (for + ranks)and 60 (for - ranks).The z value for this test is _____.

The null hypothesis in the Kruskal-Wallis test is _______.

Which of the following tests should be used to compare the means of three populations if the sample data is ordinal?

Prior to computing a Friedman test,the data are ranked within each block from smallest to largest.

Which of the following tests might be used to compare the means of two populations if the samples are related?

Statistical techniques based on assumptions about the population from which the sample data are selected are called _______.

Nonparametric statistics are sometimes called distribution-dependent statistics.

The HYPERLINK "http://www.statisticssolutions.com/mann-whitney-u-test" Mann-Whitney U-test requires that the two samples under consideration have the same number of observations.

Introduction to Statistics

Charts and Graphs

Descriptive Statistics

Probability

Discrete Distributions

Continuous Distributions

Sampling and Sampling Distributions

Statistical Inference: Estimation for Single Populations

Statistical Inference: Hypothesis Testing for Single Populations

Statistical Inferences About Two Populations

Analysis of Variance and Design of Experiments

Simple Regression Analysis and Correlation

Multiple Regression Analysis

Building Multiple Regression Models

Time-Series Forecasting and Index Numbers

Analysis of Categorical Data

Statistical Quality Control

Decision Analysis

Filters