Question 1

The one-sample runs test is a nonparametric test of randomness in the sample data.

Accepted Answer

A) True 
 B)False

Question 2

The Kruskal-Wallis test is to be used to determine whether there is a significant difference (alpha = 0.05)between the three groups using the following data:   For this test,how many degrees of freedom should be used?

Accepted Answer

A) 3 
B) 2 
C) 4 
D) 8 
E) 1 
A) 3 
B) 2 
C) 4 
D) 8 
E) 1

Question 3

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α =0.05,the appropriate conclusion is ___.

Accepted Answer

A) reject H0: the block populations are equal 
B) do not reject H0: the block populations are equal 
C) reject H0: the treatment populations are equal 
D) do not reject H0: the treatment populations are equal 
E) that the test is inconclusive 
A) reject H0: the block populations are equal 
B) do not reject H0: the block populations are equal 
C) reject H0: the treatment populations are equal 
D) do not reject H0: the treatment populations are equal 
E) that the test is inconclusive

Question 4

A randomized block design has 7 blocking levels and 5 treatment levels.Given the level of data,a nonparametric alternative to a randomized block design must be used to analyze the data.The number of degrees of freedom for the appropriate test statistic in this test of the null hypothesis that the treatment populations are equal is ___.

Accepted Answer

A) 35 
B) 34 
C) 24 
D) 6 
E) 4 
A) 35 
B) 34 
C) 24 
D) 6 
E) 4

Question 5

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 6

Use the Kruskal-Wallis test to determine whether samples come from the same or different populations.

Accepted Answer

The Kruskal-Wallis test is a nonparametr

Question 7

The nonparametric alternative to the one-way analysis of variance is the Kruskal-Wallis test.

Accepted Answer

A) True 
 B)False

Question 8

When only ordinal-level data are available,Spearman's rank correlation rather than the Pearson product-moment correlation coefficient must be used to analyze the association between two variables.

Accepted Answer

A) True 
 B)False

Question 9

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α = 0.05,the calculated value of chi-square is ___.

Accepted Answer

A) 4.51 
B) 5.27 
C) 2.83 
D) 3.48 
E) 1.48 
A) 4.51 
B) 5.27 
C) 2.83 
D) 3.48 
E) 1.48

Question 10

A disadvantage of nonparametric statistics is that the probability statements obtained from most nonparametric tests are not exact probabilities.

Accepted Answer

A) True 
 B)False

Question 11

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 12

A randomized block design has 7 blocking levels and 5 treatment levels.Given the level of data,a nonparametric alternative to a randomized block design must be used to analyze the data.For the test of the null hypothesis that the treatment populations are equal at a 1% level of significance,the critical value of the test statistic is ___.

Accepted Answer

A) 16.81 
B) 15.09 
C) 13.28 
D) 9.49 
E) 3.48 
A) 16.81 
B) 15.09 
C) 13.28 
D) 9.49 
E) 3.48

Question 13

Nonparametric statistical techniques are based on fewer assumptions about the population and the parameters compared to parametric statistical techniques.

Accepted Answer

A) True 
 B)False

Question 14

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α = 0.05,the critical value of chi-square is ___.

Accepted Answer

A) 7.81 
B) 5.99 
C) 11.07 
D) 9.49 
E) 6.81 
A) 7.81 
B) 5.99 
C) 11.07 
D) 9.49 
E) 6.81

Question 15

The methods of parametric statistics can be applied to nominal or ordinal data.

Accepted Answer

A) True 
 B)False

Question 16

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 17

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α = 0.01,the critical value of chi-square is ___.

Accepted Answer

A) 13.28 
B) 11.34 
C) 15.09 
D) 9.21 
E) 9.18 
A) 13.28 
B) 11.34 
C) 15.09 
D) 9.21 
E) 9.18

Question 18

To compare the means of two populations which cannot be assumed to be normally distributed and only ordinal-level data is available from two independent samples,we should use the t test for independent samples rather than the Mann-Whitney U test.

Accepted Answer

A) True 
 B)False

Question 19

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 null hypothesis is ___.

Accepted Answer

A) Group 1 = Group 2 = Group 3 
B) Group 1 $\neq$ Group 2 $\neq$ Group 3 
C) Group 1 $\ge$ Group 2 $\ge$Group 3 
D) Group 1 $\le$ Group 2 $\le$Group 3 
E) Group 1 $\le$ Group 2 ≥ Group 3 
A) Group 1 = Group 2 = Group 3 
B) Group 1 $\neq$ Group 2 $\neq$ Group 3 
C) Group 1 $\ge$ Group 2 $\ge$Group 3 
D) Group 1 $\le$ Group 2 $\le$Group 3 
E) Group 1 $\le$ Group 2 ≥ Group 3

Question 20

In a Friedman test with 7 treatment levels and 5 blocks,df = ___.

Accepted Answer

A) 16 
B) 34 
C) 4 
D) 35 
E) 6 
A) 16 
B) 34 
C) 4 
D) 35 
E) 6

The one-sample runs test is a nonparametric test of randomness in the sample data.

The Kruskal-Wallis test is to be used to determine whether there is a significant difference (alpha = 0.05)between the three groups using the following data: For this test,how many degrees of freedom should be used?

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α =0.05,the appropriate conclusion is ___.

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

Use the Kruskal-Wallis test to determine whether samples come from the same or different populations.

The nonparametric alternative to the one-way analysis of variance is the Kruskal-Wallis test.

When only ordinal-level data are available,Spearman's rank correlation rather than the Pearson product-moment correlation coefficient must be used to analyze the association between two variables.

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α = 0.05,the calculated value of chi-square is ___.

A disadvantage of nonparametric statistics is that the probability statements obtained from most nonparametric tests are not exact probabilities.

Nonparametric statistical techniques are based on fewer assumptions about the population and the parameters compared to parametric statistical techniques.

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α = 0.05,the critical value of chi-square is ___.

The methods of parametric statistics can be applied to nominal or ordinal data.

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 ___.

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α = 0.01,the critical value of chi-square is ___.

To compare the means of two populations which cannot be assumed to be normally distributed and only ordinal-level data is available from two independent samples,we should use the t test for independent samples rather than the Mann-Whitney U test.

In a Friedman test with 7 treatment levels and 5 blocks,df = ___.

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 one-sample runs test is a nonparametric test of randomness in the sample data.

The Kruskal-Wallis test is to be used to determine whether there is a significant difference (alpha = 0.05)between the three groups using the following data: For this test,how many degrees of freedom should be used?

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α =0.05,the appropriate conclusion is ___.

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

Use the Kruskal-Wallis test to determine whether samples come from the same or different populations.

The nonparametric alternative to the one-way analysis of variance is the Kruskal-Wallis test.

When only ordinal-level data are available,Spearman's rank correlation rather than the Pearson product-moment correlation coefficient must be used to analyze the association between two variables.

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α = 0.05,the calculated value of chi-square is ___.

A disadvantage of nonparametric statistics is that the probability statements obtained from most nonparametric tests are not exact probabilities.

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 ___.

Nonparametric statistical techniques are based on fewer assumptions about the population and the parameters compared to parametric statistical techniques.

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α = 0.05,the critical value of chi-square is ___.

The methods of parametric statistics can be applied to nominal or ordinal data.

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 ___.

When using the Friedman test to test the following data to determine whether there is a significant difference between treatment levels with α = 0.01,the critical value of chi-square is ___.

To compare the means of two populations which cannot be assumed to be normally distributed and only ordinal-level data is available from two independent samples,we should use the t test for independent samples rather than the Mann-Whitney U test.

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 null hypothesis is ___.

In a Friedman test with 7 treatment levels and 5 blocks,df = ___.

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