Question 1

The Kruskal-Wallis test is equivalent to comparing medians in c groups.

Accepted Answer

A) True 
 B)False

Question 2

The Friedman test compares medians when there are two grouping factors (rows,columns).

Accepted Answer

A) True 
 B)False

Question 3

The Wilcoxon rank sum test (Mann-Whitney test)utilizes the ranks of two independent samples.

Accepted Answer

A) True 
 B)False

Question 4

Which nonparametric test is used to test for agreement in ranks of paired data?

Accepted Answer

A)  Spearman test 
B)  Friedman test 
C)  Wilcoxon rank sum (Mann-Whitney)test 
D)  Kruskal-Wallis test 
A)  Spearman test 
B)  Friedman test 
C)  Wilcoxon rank sum (Mann-Whitney)test 
D)  Kruskal-Wallis test

Question 5

At the Food Barn,children can order from the adult menu (A)or the child's menu (C).Below is the pattern of menu orders for 24 children last Wednesday evening. A,A,A,A,C,A,A,C,C,C,A,A,A,A,A,A,C,C,C,A,C,C,C,C
Which statement is most accurate?

Accepted Answer

A)  Neither sample size (for outcomes A or 
C) is large enough for a runs test using z. 
B)  Both sample sizes (for outcomes A and 
C) are large enough for a runs test using z. 
C)  Only one outcome has a large enough sample for a runs test using z. 
D)  This type of data would not be suited for a runs test using z. 
A)  Neither sample size (for outcomes A or 
C) is large enough for a runs test using z. 
B)  Both sample sizes (for outcomes A and 
C) are large enough for a runs test using z. 
C)  Only one outcome has a large enough sample for a runs test using z. 
D)  This type of data would not be suited for a runs test using z.

Question 6

The Kruskal-Wallis test applies even if the c samples to be compared are not independent.

Accepted Answer

A) True 
 B)False

Question 7

You do not wish to assume normality in the population,yet you wish to compare central tendency in c samples.You decide to utilize MegaStat,whose menu is shown here:   Which menu would you choose?

Accepted Answer

A)  Hypothesis Tests 
B)  Nonparametric Tests 
C)  Correlation/Regression 
D)  Analysis of Variance 
A)  Hypothesis Tests 
B)  Nonparametric Tests 
C)  Correlation/Regression 
D)  Analysis of Variance

Question 8

The Wilcoxon signed-rank test is analogous to a parametric t-test comparing three or more medians.

Accepted Answer

A) True 
 B)False

Question 9

The Friedman test requires groups of equal size.

Accepted Answer

A) True 
 B)False

Question 10

Which is not true of the one-sample runs test?

Accepted Answer

A)  It is also called the Wald-Wolfowitz test after its inventors. 
B)  Its purpose is to detect nonrandomness. 
C)  It cannot be applied to sequential observations. 
D)  It is similar to a test for autocorrelation. 
A)  It is also called the Wald-Wolfowitz test after its inventors. 
B)  Its purpose is to detect nonrandomness. 
C)  It cannot be applied to sequential observations. 
D)  It is similar to a test for autocorrelation.

Question 11

Nonparametric tests may require special tables for small samples.

Accepted Answer

A) True 
 B)False

Question 12

Spearman's rank correlation is named for a British brewer who was testing beer samples.

Accepted Answer

A) True 
 B)False

Question 13

If the population is normal,we would still prefer a nonparametric test.

Accepted Answer

A) True 
 B)False

Question 14

The Mann-Whitney test is sometimes called the "Wilcoxon rank sum test" because it was formulated independently by different statisticians.

Accepted Answer

A) True 
 B)False

Question 15

A clinic has four doctors.They wish to compare the amount of time that doctors spend with their patients.It is suspected that times may not be normally distributed but are otherwise assumed similar except in center,so a nonparametric test was chosen.The Kruskal-Wallis test results are shown below.   Which is the best conclusion?

Accepted Answer

A)  The doctors have the same median times at α = .01. 
B)  The doctors have different median times at α = .01. 
C)  The sample size is insufficient for this kind of test. 
D)  A one-factor ANOVA would be a better kind of test. 
A)  The doctors have the same median times at α = .01. 
B)  The doctors have different median times at α = .01. 
C)  The sample size is insufficient for this kind of test. 
D)  A one-factor ANOVA would be a better kind of test.

Question 16

Spearman's rank correlation is used to measure agreement in rankings of paired (x,y)data.

Accepted Answer

A) True 
 B)False

Question 17

Which nonparametric test is analogous to a parametric two-sample t-test for means?

Accepted Answer

A)  Wald-Wolfowitz one-sample runs test 
B)  Wilcoxon signed-rank test 
C)  Wilcoxon rank sum (Mann-Whitney)test 
D)  Kruskal-Wallis test 
A)  Wald-Wolfowitz one-sample runs test 
B)  Wilcoxon signed-rank test 
C)  Wilcoxon rank sum (Mann-Whitney)test 
D)  Kruskal-Wallis test

Question 18

All of these are nonparametric tests except:

Accepted Answer

A)  Spearman rank correlation test. 
B)  Friedman test. 
C)  Student's t-test. 
D)  Kruskal-Wallis test. 
A)  Spearman rank correlation test. 
B)  Friedman test. 
C)  Student's t-test. 
D)  Kruskal-Wallis test.

Question 19

If there are three or more populations with ordinal data,what is the appropriate test to determine whether the distributions are equal?

Accepted Answer

A)  Friedman test 
B)  t-test 
C)  ANOVA 
D)  Kruskal-Wallis test 
A)  Friedman test 
B)  t-test 
C)  ANOVA 
D)  Kruskal-Wallis test

Question 20

To compare the cost of three shipping methods,a firm shipped five orders to each of four different destinations over a six-month period.Their total shipping costs are shown below.   Which nonparametric test would you use to compare the median shipping costs among destinations and among shippers?

Accepted Answer

A)  Friedman test 
B)  Kruskal-Wallis test 
C)  Wilcoxon rank sum (Mann-Whitney)test 
D)  Lebesgue-Stieltjes test 
A)  Friedman test 
B)  Kruskal-Wallis test 
C)  Wilcoxon rank sum (Mann-Whitney)test 
D)  Lebesgue-Stieltjes test

The Kruskal-Wallis test is equivalent to comparing medians in c groups.

The Friedman test compares medians when there are two grouping factors (rows,columns).

The Wilcoxon rank sum test (Mann-Whitney test)utilizes the ranks of two independent samples.

Which nonparametric test is used to test for agreement in ranks of paired data?

At the Food Barn,children can order from the adult menu (A)or the child's menu (C).Below is the pattern of menu orders for 24 children last Wednesday evening. A,A,A,A,C,A,A,C,C,C,A,A,A,A,A,A,C,C,C,A,C,C,C,C Which statement is most accurate?

The Kruskal-Wallis test applies even if the c samples to be compared are not independent.

You do not wish to assume normality in the population,yet you wish to compare central tendency in c samples.You decide to utilize MegaStat,whose menu is shown here: Which menu would you choose?

The Wilcoxon signed-rank test is analogous to a parametric t-test comparing three or more medians.

The Friedman test requires groups of equal size.

Which is not true of the one-sample runs test?

Nonparametric tests may require special tables for small samples.

Spearman's rank correlation is named for a British brewer who was testing beer samples.

If the population is normal,we would still prefer a nonparametric test.

The Mann-Whitney test is sometimes called the "Wilcoxon rank sum test" because it was formulated independently by different statisticians.

Spearman's rank correlation is used to measure agreement in rankings of paired (x,y)data.

Which nonparametric test is analogous to a parametric two-sample t-test for means?

All of these are nonparametric tests except:

If there are three or more populations with ordinal data,what is the appropriate test to determine whether the distributions are equal?

To compare the cost of three shipping methods,a firm shipped five orders to each of four different destinations over a six-month period.Their total shipping costs are shown below. Which nonparametric test would you use to compare the median shipping costs among destinations and among shippers?

Overview of Statistics

Data Collection

Describing Data Visually

Descriptive Statistics

Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions and Estimation

One-Sample Hypothesis Tests

Two-Sample Hypothesis Tests

Analysis of Variance

Simple Regression

Multiple Regression

Time-Series Analysis

Chi-Square Tests

Quality Management

Filters

Exam 16: Nonparametric Tests

The Kruskal-Wallis test is equivalent to comparing medians in c groups.

The Friedman test compares medians when there are two grouping factors (rows,columns).

The Wilcoxon rank sum test (Mann-Whitney test)utilizes the ranks of two independent samples.

Which nonparametric test is used to test for agreement in ranks of paired data?

At the Food Barn,children can order from the adult menu (A)or the child's menu (C).Below is the pattern of menu orders for 24 children last Wednesday evening. A,A,A,A,C,A,A,C,C,C,A,A,A,A,A,A,C,C,C,A,C,C,C,C Which statement is most accurate?

The Kruskal-Wallis test applies even if the c samples to be compared are not independent.

You do not wish to assume normality in the population,yet you wish to compare central tendency in c samples.You decide to utilize MegaStat,whose menu is shown here: Which menu would you choose?

The Wilcoxon signed-rank test is analogous to a parametric t-test comparing three or more medians.

The Friedman test requires groups of equal size.

Which is not true of the one-sample runs test?

Nonparametric tests may require special tables for small samples.

Spearman's rank correlation is named for a British brewer who was testing beer samples.

If the population is normal,we would still prefer a nonparametric test.

The Mann-Whitney test is sometimes called the "Wilcoxon rank sum test" because it was formulated independently by different statisticians.

Spearman's rank correlation is used to measure agreement in rankings of paired (x,y)data.

Which nonparametric test is analogous to a parametric two-sample t-test for means?

All of these are nonparametric tests except:

If there are three or more populations with ordinal data,what is the appropriate test to determine whether the distributions are equal?

To compare the cost of three shipping methods,a firm shipped five orders to each of four different destinations over a six-month period.Their total shipping costs are shown below. Which nonparametric test would you use to compare the median shipping costs among destinations and among shippers?

Overview of Statistics

Data Collection

Describing Data Visually

Descriptive Statistics

Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions and Estimation

One-Sample Hypothesis Tests

Two-Sample Hypothesis Tests

Analysis of Variance

Simple Regression

Multiple Regression

Time-Series Analysis

Chi-Square Tests

Quality Management

Filters