Question 1

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 B

Question 2

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 E

Question 3

Nonparametric statistics are sometimes called ___.

Accepted Answer

A) nominal statistics 
B) interval statistics 
C) distribution-dependent statistics 
D) distribution-free statistics 
E) qualitative statistics 
A) nominal statistics 
B) interval statistics 
C) distribution-dependent statistics 
D) distribution-free statistics 
E) qualitative statistics D

Question 4

Which of the following is not an assumption of the Friedman test?

Accepted Answer

A) The blocks are independent. 
B) The population has a normal distribution. 
C) There is no interaction between blocks and treatments. 
D) Observations within each block can be ranked. 
A) The blocks are independent. 
B) The population has a normal distribution. 
C) There is no interaction between blocks and treatments. 
D) Observations within each block can be ranked.

Question 5

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 6

Four types of bicycle tires are ridden in six different cities to see if the tires lasted about the same number of miles.If there are differences, then that tire could promote its durability to potential customers.Using the data in the table below and an alpha of 0.05, what is the observed value of χ2?

Accepted Answer

A) 77.82 
B) 5.00 
C) 84.67 
D) 9.35 
E) 4.00 
A) 77.82 
B) 5.00 
C) 84.67 
D) 9.35 
E) 4.00

Question 7

Correlation coefficient cannot be used to analyze the association between two variables when only ordinal-level data are available.

Accepted Answer

A) True 
 B)False

Question 8

The sampling distribution of R, the number of runs, in the one-sample runs test for randomness of the observations in a large sample is approximately normal.

Accepted Answer

A) True 
 B)False

Question 9

Correlation coefficients may be computed for parametric and nonparametric data.If the data are nonparametric, which of the following should be used?

Accepted Answer

A) Pearson correlation coefficient 
B) Spearman correlation coefficient 
C) Gaussian correlation coefficient 
D) De Moivre correlation coefficient 
E) Gossett correlation coefficient 
A) Pearson correlation coefficient 
B) Spearman correlation coefficient 
C) Gaussian correlation coefficient 
D) De Moivre correlation coefficient 
E) Gossett correlation coefficient

Question 10

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

Accepted Answer

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

Question 11

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

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 12

Two stock analysts rank five investment portfolios for overall performance and risk.   The Spearman rank correlation coefficient is ___.

Accepted Answer

A) 0.80 
B) 0.20 
C) 0.05 
D) 0.95 
E) 1.00 
A) 0.80 
B) 0.20 
C) 0.05 
D) 0.95 
E) 1.00

Question 13

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 14

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 15

The null hypothesis for a one-sample runs test is ___.

Accepted Answer

A) "the observations in the sample are randomly generated" 
B) "the observations in the sample are not correlated" 
C) "the observations in the sample are statistically independent" 
D) "the observations in the sample are cross-linked" 
E) "the observations are systematically generated" 
A) "the observations in the sample are randomly generated" 
B) "the observations in the sample are not correlated" 
C) "the observations in the sample are statistically independent" 
D) "the observations in the sample are cross-linked" 
E) "the observations are systematically generated"

Question 16

In a Mann-Whitney U test, the U statistic was calculated to be 58.0 based on sample sizes of 22 and 28.What is the z value for this test?

Accepted Answer

A) 51.17 
B) 308 
C) 0.117 
D) -4.88 
E) -2.44 
A) 51.17 
B) 308 
C) 0.117 
D) -4.88 
E) -2.44

Question 17

The Spearman correlation coefficient is calculated for a set of data on two variables, x and y.It appears that as the rank of x increases, the rank of y is decreasing.We would expect the Spearman correlation coefficient to be ___.

Accepted Answer

A) equal to zero 
B) positive 
C) negative 
D) greater than 5 
E) greater than 1 
A) equal to zero 
B) positive 
C) negative 
D) greater than 5 
E) greater than 1

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, instead of the t test for independent samples we should use the Mann-Whitney U test.

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

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

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

Nonparametric statistics are sometimes called ___.

Which of the following is not an assumption of the Friedman test?

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

Correlation coefficient cannot be used to analyze the association between two variables when only ordinal-level data are available.

The sampling distribution of R, the number of runs, in the one-sample runs test for randomness of the observations in a large sample is approximately normal.

Correlation coefficients may be computed for parametric and nonparametric data.If the data are nonparametric, which of the following should be used?

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

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

Two stock analysts rank five investment portfolios for overall performance and risk. The Spearman rank correlation coefficient is ___.

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

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 for a one-sample runs test is ___.

In a Mann-Whitney U test, the U statistic was calculated to be 58.0 based on sample sizes of 22 and 28.What is the z value for this test?

The Spearman correlation coefficient is calculated for a set of data on two variables, x and y.It appears that as the rank of x increases, the rank of y is decreasing.We would expect the Spearman correlation coefficient to be ___.

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, instead of the t test for independent samples we should use the Mann-Whitney U test.

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

The methods of parametric statistics require ___.

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

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Exam 17: Nonparametric Statistics

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

Nonparametric statistics are sometimes called ___.

Which of the following is not an assumption of the Friedman test?

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

Correlation coefficient cannot be used to analyze the association between two variables when only ordinal-level data are available.

The sampling distribution of R, the number of runs, in the one-sample runs test for randomness of the observations in a large sample is approximately normal.

Correlation coefficients may be computed for parametric and nonparametric data.If the data are nonparametric, which of the following should be used?

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

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

Two stock analysts rank five investment portfolios for overall performance and risk. The Spearman rank correlation coefficient is ___.

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

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 for a one-sample runs test is ___.

In a Mann-Whitney U test, the U statistic was calculated to be 58.0 based on sample sizes of 22 and 28.What is the z value for this test?

The Spearman correlation coefficient is calculated for a set of data on two variables, x and y.It appears that as the rank of x increases, the rank of y is decreasing.We would expect the Spearman correlation coefficient to be ___.

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, instead of the t test for independent samples we should use the Mann-Whitney U test.

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

The methods of parametric statistics require ___.

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