Question 1

Nonparametric methods use less information than their parametric counterparts.

Accepted Answer

A) True 
 B)False

Question 2

If a researcher were interested in determining whether or not two groups   of students received
significantly different grades in statistics, the Wilcoxon rank sum test would be the best method to
use.

Accepted Answer

A) True 
 B)False

Question 3

The Wilcoxon rank sum test is used to test dependent samples, and the Wilcoxon signed-rank test is used
for independent samples.

Accepted Answer

A) True 
 B)False

Question 4

A researcher is interested in investigating three independent, non-normally distributed variables.Which of the following should be used for this application?

Accepted Answer

A) t-test 
B) Wilcoxon rank sum test 
C) Wilcoxon signed-rank test 
D) Kruskal-Wallis test 
A) t-test 
B) Wilcoxon rank sum test 
C) Wilcoxon signed-rank test 
D) Kruskal-Wallis test

Question 5

If two judges were asked to rank 10 science fair projects, the Spearman rank correlation coefficient would
be 0.70 given that the sum of squares is equal to 50.

Accepted Answer

A) True 
 B)False

Question 6

A landscaping company hypothesizes that they can mow a median number of 20 lawns in one weekend.
A random sample of 14 weekends yields the following data:
  
-What is the test value?

Accepted Answer

A) 3 
B) 4 
C) 7 
D) 8 
A) 3 
B) 4 
C) 7 
D) 8

Question 7

The test for randomness considers the frequency of the letters rather than the number of runs.

Accepted Answer

A) True 
 B)False

Question 8

A run is a succession of identical letters preceded or followed by a different letter or no letter at all, such
as the beginning or end of the succession.

Accepted Answer

A) True 
 B)False

Question 9

An instructor divided her class into four groups and asked them to keep track of the number of soft
drinks they consume per week.In preparation for using the Kruskal-Wallis test to test if there is a
significant difference in mean weekly consumption among the 4 groups, combine and rank the following
data.

Accepted Answer

@#IMG-DLM& The critical value for H is 7.815.Becau

Question 10

Two genetics classes took the same exam and their scores are as shown in the table below.What is the rank of the score for Gregor?

Accepted Answer

A) 8.5 
B) 9 
C) 9.5 
D) 10 
A) 8.5 
B) 9 
C) 9.5 
D) 10

Question 11

Men and women were randomly selected to rank eight television programs on a
scale of 1 to 50, with 50 being the highest score.Use the Spearman rank correlation
coefficient at   to determine if there is a difference in the rankings between men and
women.

Accepted Answer

The answer of Men and women were randomly selected to...

Question 12

The computations for the rank correlation coefficient for nonparametric data are simpler than those for
the ___________ coefficient and involve ranking each set of data.
________________________________________

Accepted Answer

The answer of The computations for the rank correlation coefficient...

Question 13

Nonparametric methods are more sensitive than their parametric counterparts when the assumptions of
the parametric methods are met.

Accepted Answer

A) True 
 B)False

Question 14

The data collected for studying whether or not there is a difference between the number of hours men and women watch television is summarized below.To compute the test value, the data from both samples
Should be combined, arranged in order, and ranked according to each group.What is the sum of the ranks
For each group?

Accepted Answer

A) The sum of the ranks for the men is 162.5, and the sum of the ranks for the woman is 137.5. 
B) The sum of the ranks for the men is 170, and the sum of the ranks for the woman is 130. 
C) The sum of the ranks for the men is 130, and the sum of the ranks for the woman is 170. 
D) The sum of the ranks for the men is 137.5, and the sum of the ranks for the woman is 162.5. 
A) The sum of the ranks for the men is 162.5, and the sum of the ranks for the woman is 137.5. 
B) The sum of the ranks for the men is 170, and the sum of the ranks for the woman is 130. 
C) The sum of the ranks for the men is 130, and the sum of the ranks for the woman is 170. 
D) The sum of the ranks for the men is 137.5, and the sum of the ranks for the woman is 162.5.

Question 15

A study of the effects of a chemical additive on soil acidity recorded the acidity of eight plots of land before and after the application of the additive.The results
Were:   The test value for the signed-rank test is:

Accepted Answer

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

Question 16

Given the following data, what is the ranking of data point 1? 4, 4, -6, 7, 11, 6, -11, 1

Accepted Answer

A) 3 
B) 4 
C) 4.5 
D) 5 
A) 3 
B) 4 
C) 4.5 
D) 5

Question 17

Calculate the rank totals for each of the four groups described in problem 53 and complete the Kruskal-
Wallis to test the null hypothesis that there is no difference in mean weekly soft drink consumption
among the 4 corresponding treatment conditions for   .

Accepted Answer

@#IMG-DLM& 
The test value, @#IMG-DLM& , is greater than the

Question 18

Test the following sequence for randomness.   You may use the following abbreviated table of critical values for runs (at = .05).Reject the null hypothesis if the number of runs is less than or equal to the smaller value or greater than or equal to the
Larger value.

Accepted Answer

A) Do not reject because the test value 4 is between the critical values 3 and 11 
B) Do not reject because the test value 7 is between the critical values 3 and 12 
C) Do not reject because the test value 4 is outside the critical values 3 and 11 
D) Reject because the test value 7 is between the critical values 3 and 11 
A) Do not reject because the test value 4 is between the critical values 3 and 11 
B) Do not reject because the test value 7 is between the critical values 3 and 12 
C) Do not reject because the test value 4 is outside the critical values 3 and 11 
D) Reject because the test value 7 is between the critical values 3 and 11

Question 19

The _______________ is used to test the value of a median for a specific sample.
________________________________________

Accepted Answer

The answer of The _______________ is used to test the...

Question 20

A study of the effects of a chemical additive on soil acidity recorded the soil acidity of eight plots of land before and after the application of the additive.The results
Were:   The test value for the sign test is:

Accepted Answer

A) 1 
B) 2 
C) 3 
A) 1 
B) 2 
C) 3

Nonparametric methods use less information than their parametric counterparts.

If a researcher were interested in determining whether or not two groups of students received significantly different grades in statistics, the Wilcoxon rank sum test would be the best method to use.

The Wilcoxon rank sum test is used to test dependent samples, and the Wilcoxon signed-rank test is used for independent samples.

A researcher is interested in investigating three independent, non-normally distributed variables.Which of the following should be used for this application?

If two judges were asked to rank 10 science fair projects, the Spearman rank correlation coefficient would be 0.70 given that the sum of squares is equal to 50.

A landscaping company hypothesizes that they can mow a median number of 20 lawns in one weekend. A random sample of 14 weekends yields the following data: -What is the test value?

The test for randomness considers the frequency of the letters rather than the number of runs.

A run is a succession of identical letters preceded or followed by a different letter or no letter at all, such as the beginning or end of the succession.

Two genetics classes took the same exam and their scores are as shown in the table below.What is the rank of the score for Gregor?

Men and women were randomly selected to rank eight television programs on a scale of 1 to 50, with 50 being the highest score.Use the Spearman rank correlation coefficient at to determine if there is a difference in the rankings between men and women.

The computations for the rank correlation coefficient for nonparametric data are simpler than those for the _ coefficient and involve ranking each set of data. ______________________________

Nonparametric methods are more sensitive than their parametric counterparts when the assumptions of the parametric methods are met.

A study of the effects of a chemical additive on soil acidity recorded the acidity of eight plots of land before and after the application of the additive.The results Were: The test value for the signed-rank test is:

Given the following data, what is the ranking of data point 1? 4, 4, -6, 7, 11, 6, -11, 1

Calculate the rank totals for each of the four groups described in problem 53 and complete the Kruskal- Wallis to test the null hypothesis that there is no difference in mean weekly soft drink consumption among the 4 corresponding treatment conditions for .

Test the following sequence for randomness. You may use the following abbreviated table of critical values for runs (at = .05).Reject the null hypothesis if the number of runs is less than or equal to the smaller value or greater than or equal to the Larger value.

The _ is used to test the value of a median for a specific sample. __________________________

A study of the effects of a chemical additive on soil acidity recorded the soil acidity of eight plots of land before and after the application of the additive.The results Were: The test value for the sign test is:

The Nature of Probability and Statistics

Frequency Distributions and Graphs

Data Description

Discrete Probability Distributions

The Normal Distribution

Confidence Intervals and Sample Size

Hypothesis Testing

Testing the Difference Between Two Means, Two Variances, and Two Proportions

Correlation and Regression

Other Chi-Square Tests

Analysis of Variance

Sampling and Simulation

Filters

Exam 13: Nonparametric Statistics

Nonparametric methods use less information than their parametric counterparts.

If a researcher were interested in determining whether or not two groups of students received significantly different grades in statistics, the Wilcoxon rank sum test would be the best method to use.

The Wilcoxon rank sum test is used to test dependent samples, and the Wilcoxon signed-rank test is used for independent samples.

A researcher is interested in investigating three independent, non-normally distributed variables.Which of the following should be used for this application?

If two judges were asked to rank 10 science fair projects, the Spearman rank correlation coefficient would be 0.70 given that the sum of squares is equal to 50.

A landscaping company hypothesizes that they can mow a median number of 20 lawns in one weekend. A random sample of 14 weekends yields the following data: -What is the test value?

The test for randomness considers the frequency of the letters rather than the number of runs.

A run is a succession of identical letters preceded or followed by a different letter or no letter at all, such as the beginning or end of the succession.

Two genetics classes took the same exam and their scores are as shown in the table below.What is the rank of the score for Gregor?

Men and women were randomly selected to rank eight television programs on a scale of 1 to 50, with 50 being the highest score.Use the Spearman rank correlation coefficient at to determine if there is a difference in the rankings between men and women.

The computations for the rank correlation coefficient for nonparametric data are simpler than those for the ___________ coefficient and involve ranking each set of data. ________________________________________

Nonparametric methods are more sensitive than their parametric counterparts when the assumptions of the parametric methods are met.

A study of the effects of a chemical additive on soil acidity recorded the acidity of eight plots of land before and after the application of the additive.The results Were: The test value for the signed-rank test is:

Given the following data, what is the ranking of data point 1? 4, 4, -6, 7, 11, 6, -11, 1

Calculate the rank totals for each of the four groups described in problem 53 and complete the Kruskal- Wallis to test the null hypothesis that there is no difference in mean weekly soft drink consumption among the 4 corresponding treatment conditions for .

Test the following sequence for randomness. You may use the following abbreviated table of critical values for runs (at = .05).Reject the null hypothesis if the number of runs is less than or equal to the smaller value or greater than or equal to the Larger value.

The _______________ is used to test the value of a median for a specific sample. ________________________________________

A study of the effects of a chemical additive on soil acidity recorded the soil acidity of eight plots of land before and after the application of the additive.The results Were: The test value for the sign test is:

The Nature of Probability and Statistics

Frequency Distributions and Graphs

Data Description

Discrete Probability Distributions

The Normal Distribution

Confidence Intervals and Sample Size

Hypothesis Testing

Testing the Difference Between Two Means, Two Variances, and Two Proportions

Correlation and Regression

Other Chi-Square Tests

Analysis of Variance

Sampling and Simulation

Filters

The computations for the rank correlation coefficient for nonparametric data are simpler than those for the _ coefficient and involve ranking each set of data. ______________________________

The _ is used to test the value of a median for a specific sample. __________________________