Question 1

If a researcher is using the sign test and has 13 positive signs and 19 negative signs, then the test value is:

Accepted Answer

A) 19 
B) -6 
C) 6 
D) 13 
A) 19 
B) -6 
C) 6 
D) 13

Question 2

In order to determine whether two variables are linearly related for non-normally distributed data, one
uses the Spearman rank correlation coefficient.

Accepted Answer

A) True 
 B)False

Question 3

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:
  
-Is the landscaping company's hypothesis of a median of 20 lawns per weekend valid?

Accepted Answer

A) yes 
B) no 
C) Null hypothesis is invalid because the numbers of positives and negatives are equal. 
D) There are not enough data points to make a valid determination. 
A) yes 
B) no 
C) Null hypothesis is invalid because the numbers of positives and negatives are equal. 
D) There are not enough data points to make a valid determination.

Question 4

Given the following data, what is the ranking of data point 24? 27, 24, 17, 30, 34, 29, 12, 24

Accepted Answer

A) 2 
B) 2.5 
C) 3 
D) 3.5 
A) 2 
B) 2.5 
C) 3 
D) 3.5

Question 5

Use the Kruskal-Wallis test to determine if there is a difference in the means of these five groups. With   , and the   , the critical value is 9.488.Rank the above data and calculate the
Value for H.Choose the correct table for the summary of the ranking results and the calculation of the H
Value.
Refer To:13-58

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 6

Six second grade students tried tossing a ball into a basket ten times each.Their teacher then suggested a different way of tossing the ball, and the six students tried again.The
Number of successful tosses, before and after the teacher's added instruction, are shown
Below.  
Ignoring the differences of 0, the (unsigned) rank of child C is:

Accepted Answer

A) 4 
B) 3.5 
C) 3 
D) 2.5 
A) 4 
B) 3.5 
C) 3 
D) 2.5

Question 7

When using nonparametric methods, no knowledge of ______________ is required.
________________________________________

Accepted Answer

population

Question 8

A weight loss program measured 48 of their clients before entering the program and again after finishing
the program.The sum of positive ranks is 800 and negative ranks 376.Find the value of the test
statistic.

Accepted Answer

The answer of A weight loss program measured 48 of...

Question 9

Given the following data, what is the ranking of data point -31? -28, -28, -38, -25, -21, -26, -43, -31

Accepted Answer

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

Question 10

The Kruskal-Wallis test is always left-tailed.

Accepted Answer

A) True 
 B)False

Question 11

The sign test does not consider the magnitude of the data.

Accepted Answer

A) True 
 B)False

Question 12

A researcher wished to compare the automobile colour preferences of men and women.An experiment was performed recording the preferences of 10 men and 10 women.If the sum of squares of the ranking
Differences is equal to 8, what is the Spearman Rank Correlation Coefficient   ?

Accepted Answer

A) 0.975 
B) 0.952 
C) 0.476 
D) 0.905 
A) 0.975 
B) 0.952 
C) 0.476 
D) 0.905

Question 13

How many runs are in the following sequence?

Accepted Answer

A) 7 
B) 6 
C) 5 
D) 4 
A) 7 
B) 6 
C) 5 
D) 4

Question 14

A random sample of 12 men and 12 women were asked to report the number of hours they watched television on a Wednesday evening.If a researcher wanted to test the hypothesis that there is no
Difference in the amount of time spent watching television based on gender, what z-values would be used
For the Wilcoxon rank sum test for   (two-tailed)?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 15

A researcher believes that the median amount of rain per year is 36 inches.A random sample of 20 years yields the following data:   At = .05, should the researcher's hypothesis be accepted or rejected?
You may use the following abbreviated table of critical values (two tailed, = .05) taken from Table
J:

Accepted Answer

A) Reject because the test value 6 is more than the critical value 6 
B) Do not reject because the test value 7 is more than the critical value 6 
C) Reject because the test value 6 is more than the critical value 5 
D) Do not reject because the test value 7 is more than the critical value 5 
A) Reject because the test value 6 is more than the critical value 6 
B) Do not reject because the test value 7 is more than the critical value 6 
C) Reject because the test value 6 is more than the critical value 5 
D) Do not reject because the test value 7 is more than the critical value 5

Question 16

Two independent sets of data are collected, one with 16 subjects and one with 26 subjects.Mr.X is in the first set of data and has a value of 67.In the first set of data, 5 values are higher than 67 and 10 values
Are lower (with Mr.X being the other data value).In the second set, 9 values are higher than 67 and 17
Values are lower.What is the rank of Mr.X?

Accepted Answer

A) 13 
B) 14 
C) 27 
D) 28 
A) 13 
B) 14 
C) 27 
D) 28

Question 17

A pharmaceutical company believes that a new drug should lower blood pressure.In a random sample of 30 test subjects, their blood pressure was measured before taking the drug and then after taking the drug.
It was found that 25 had a lower blood pressure reading after taking the drug while 5 had a higher blood
Pressure reading.Using =.05, is there enough evidence to support the pharmaceutical company?

Accepted Answer

A) The critical value is less than the test statistic; therefore, there is not enough evidence to support the pharmaceutical company. 
B) The critical value is greater than the test statistic; therefore, there is not enough evidence to support the pharmaceutical company. 
C) he critical value is less than the test statistic; therefore, there is enough evidence to support the pharmaceutical company. 
D) The critical value is greater than the test statistic; therefore, there is enough evidence to support the pharmaceutical company. 
A) The critical value is less than the test statistic; therefore, there is not enough evidence to support the pharmaceutical company. 
B) The critical value is greater than the test statistic; therefore, there is not enough evidence to support the pharmaceutical company. 
C) he critical value is less than the test statistic; therefore, there is enough evidence to support the pharmaceutical company. 
D) The critical value is greater than the test statistic; therefore, there is enough evidence to support the pharmaceutical company.

Question 18

Two students were asked to rate six different television shows on a scale from 0 to 10.The data are shown in the following table:  
What are the television show rankings for student 2 (to be used to calculate the Spearman Rank
Correlation Coefficient)?

Accepted Answer

A) A-2, B-1, C-5, D-3.5, E-6, F-3.5 
B) A-1, B-5, C-2, D-3.5, E-6, F-3.5 
C) A-2, B-1, C-6, D-3.5, E-5, F-3.5 
D) A-2, B-1, C-5, D-2.5, E-6, F-2.5 
A) A-2, B-1, C-5, D-3.5, E-6, F-3.5 
B) A-1, B-5, C-2, D-3.5, E-6, F-3.5 
C) A-2, B-1, C-6, D-3.5, E-5, F-3.5 
D) A-2, B-1, C-5, D-2.5, E-6, F-2.5

Question 19

Nonparametric statistics can be applied to populations when the assumption of normality cannot be
met.

Accepted Answer

A) True 
 B)False

Question 20

Two students were asked to rate six different television shows on a scale from 0 to 10.The data are shown in the following table:  
What is the Spearman Rank Correlation Coefficient for this set of data?

Accepted Answer

A) 0.432 
B) 0.559 
C) 0.725 
D) 0.886 
A) 0.432 
B) 0.559 
C) 0.725 
D) 0.886

If a researcher is using the sign test and has 13 positive signs and 19 negative signs, then the test value is:

In order to determine whether two variables are linearly related for non-normally distributed data, one uses the Spearman rank correlation coefficient.

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: -Is the landscaping company's hypothesis of a median of 20 lawns per weekend valid?

Given the following data, what is the ranking of data point 24? 27, 24, 17, 30, 34, 29, 12, 24

When using nonparametric methods, no knowledge of is required. __________________________

A weight loss program measured 48 of their clients before entering the program and again after finishing the program.The sum of positive ranks is 800 and negative ranks 376.Find the value of the test statistic.

Given the following data, what is the ranking of data point -31? -28, -28, -38, -25, -21, -26, -43, -31

The Kruskal-Wallis test is always left-tailed.

The sign test does not consider the magnitude of the data.

A researcher wished to compare the automobile colour preferences of men and women.An experiment was performed recording the preferences of 10 men and 10 women.If the sum of squares of the ranking Differences is equal to 8, what is the Spearman Rank Correlation Coefficient ?

How many runs are in the following sequence?

Two students were asked to rate six different television shows on a scale from 0 to 10.The data are shown in the following table: What are the television show rankings for student 2 (to be used to calculate the Spearman Rank Correlation Coefficient)?

Nonparametric statistics can be applied to populations when the assumption of normality cannot be met.

Two students were asked to rate six different television shows on a scale from 0 to 10.The data are shown in the following table: What is the Spearman Rank Correlation Coefficient for this set of data?

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

If a researcher is using the sign test and has 13 positive signs and 19 negative signs, then the test value is:

In order to determine whether two variables are linearly related for non-normally distributed data, one uses the Spearman rank correlation coefficient.

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: -Is the landscaping company's hypothesis of a median of 20 lawns per weekend valid?

Given the following data, what is the ranking of data point 24? 27, 24, 17, 30, 34, 29, 12, 24

When using nonparametric methods, no knowledge of ______________ is required. ________________________________________

A weight loss program measured 48 of their clients before entering the program and again after finishing the program.The sum of positive ranks is 800 and negative ranks 376.Find the value of the test statistic.

Given the following data, what is the ranking of data point -31? -28, -28, -38, -25, -21, -26, -43, -31

The Kruskal-Wallis test is always left-tailed.

The sign test does not consider the magnitude of the data.

A researcher wished to compare the automobile colour preferences of men and women.An experiment was performed recording the preferences of 10 men and 10 women.If the sum of squares of the ranking Differences is equal to 8, what is the Spearman Rank Correlation Coefficient ?

How many runs are in the following sequence?

Two students were asked to rate six different television shows on a scale from 0 to 10.The data are shown in the following table: What are the television show rankings for student 2 (to be used to calculate the Spearman Rank Correlation Coefficient)?

Nonparametric statistics can be applied to populations when the assumption of normality cannot be met.

Two students were asked to rate six different television shows on a scale from 0 to 10.The data are shown in the following table: What is the Spearman Rank Correlation Coefficient for this set of data?

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

When using nonparametric methods, no knowledge of is required. __________________________