Question 1

What is the term for a nonparametric test that is used to determine the randomness of a sample?

Accepted Answer

A) Sign test 
B) Wilcoxon rank sum test 
C) runs test 
D) Kruskal-Wallis test 
A) Sign test 
B) Wilcoxon rank sum test 
C) runs test 
D) Kruskal-Wallis test C

Question 2

What is another term for nonparametric statistics?

Accepted Answer

A) distribution-free statistics 
B) inferential statistics 
C) parametric tests 
D) sign test 
A) distribution-free statistics 
B) inferential statistics 
C) parametric tests 
D) sign test A

Question 3

If data is normally distributed, then the Wilcoxon signed-rank test is more powerful than the t-test.

Accepted Answer

A) True 
 B)False  False

Question 4

When using the Kruskal-Wallis test to compare three or more means, it is necessary to consider all data
values together and then rank them.

Accepted Answer

A) True 
 B)False

Question 5

Test the following sequence for randomness. B A A A A B A B B B B A A A
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 6 is not between the critical values 3 and 11 
B) Do not reject because the test value 5 is between the critical values 3 and 12 
C) Do not reject because the test value 6 is between the critical values 3 and 12 
D) Reject because the test value 5 is not between the critical values 3 and 11 
A) Do not reject because the test value 6 is not between the critical values 3 and 11 
B) Do not reject because the test value 5 is between the critical values 3 and 12 
C) Do not reject because the test value 6 is between the critical values 3 and 12 
D) Reject because the test value 5 is not between the critical values 3 and 11

Question 6

It is believed that children can throw a ball farther after lunch than before lunch.A researcher decided to investigate this hypothesis for 14 children using the paired-sample sign test.Each of the distances below
Is in meters.   At = .05, do the data support the claim?
You may use the following abbreviated table of critical values (one-tailed, = .05) taken from Table
J:

Accepted Answer

A) Supports the claim because the test value 4 is more than the critical value 3 
B) Does not support the claim because the test value 4 is more than the critical value 3 
A) Supports the claim because the test value 4 is more than the critical value 3 
B) Does not support the claim because the test value 4 is more than the critical value 3

Question 7

Two independent samples of tall and short students are selected, and their scores on a 25-point statistics quiz are recorded as shown in the table below.What is the rank of the score for Wilt?

Accepted Answer

A) 10 
B) 11 
C) 9 
D) 8 
A) 10 
B) 11 
C) 9 
D) 8

Question 8

A man wanted to see if the median time to get to work was at least 15 minutes.In a random sample of 40 days, he found that 30 days took more than 15 minutes and the rest took less than 15 minutes.Is there
Enough evidence to support his claim if he uses an =.05?

Accepted Answer

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

Question 9

A student wanted to see if the median number of Facebook friends is more than 200.For a random
sample of 42 people, 30 people had more than 200 friends while the rest had less than 200 friends.Find
the value of the test statistic.

Accepted Answer

The answer of A student wanted to see if the...

Question 10

When the sample size is 26 or more, the normal approximation can be used to find the test value when performing the sign test on a sample.The test is now referred to as a:

Accepted Answer

A) runs test. 
B) z-test. 
C) Wilcoxon rank sum test. 
D) Wilcoxon signed-rank test. 
A) runs test. 
B) z-test. 
C) Wilcoxon rank sum test. 
D) Wilcoxon signed-rank test.

Question 11

If a researcher wanted to prove that there is a relationship between two variables and had collected
30 data points for each group, the Spearman rank correlation coefficient could be used, but Pearson's
correlation coefficient would be a better choice for a test method.

Accepted Answer

A) True 
 B)False

Question 12

Two independent sets of data are collected, one with 15 subjects and one with 22 subjects.Ms.X is in the first set of data and has a value of 41.In the first set, 11 values are higher than 41 and 3 values are lower
(with Ms.X being the other data value).In the second set, 16 values are higher than data and 6 values are
Lower.What is the rank of Ms.X?

Accepted Answer

A) 9 
B) 10 
C) 26 
D) 27 
A) 9 
B) 10 
C) 26 
D) 27

Question 13

It was thought that hypnosis would lower a person's need to smoke.A researcher decided to investigate this hypothesis using the paired-sample sign test.Given that the critical value for
Ten samples at   (single-sided) is 1, is there enough evidence to support the hypothesis?

Accepted Answer

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

Question 14

Given the following data, what is the ranking of data point 27? 30, 30, 20, 33, 37, 32, 15, 27

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
A) 2 
B) 3 
C) 4 
D) 5

Question 15

A researcher tests three different brands of 2% milk to see how many grams of fat are in each 8 ounce glass.The results are shown below.   What is the sum of the ranks of Brand A?

Accepted Answer

A) 38.5 
B) 39.5 
C) 40.0 
D) 40.5 
A) 38.5 
B) 39.5 
C) 40.0 
D) 40.5

Question 16

A statistics teacher wanted to see whether students exit the classroom at random.He observes students
leaving in the order given below.How many runs are present? Test for randomness at   .

Accepted Answer

There are 11 runs present.The critical v

Question 17

Nonparametric tests and statistics can be used in place of their parametric counterparts when the
assumption of ______________ cannot be met.
________________________________________

Accepted Answer

The answer of Nonparametric tests and statistics can be used...

Question 18

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 signed rank of child A is:

Accepted Answer

A) +4 
B) +3.5 
C) -3 
D) -3.5 
A) +4 
B) +3.5 
C) -3 
D) -3.5

Question 19

Given the following data, what is the ranking of data point 15? 16, 18, 12, 19, 15, 20, 13, 18

Accepted Answer

A) 3 
B) 4 
C) 5 
D) 6 
A) 3 
B) 4 
C) 5 
D) 6

Question 20

_______________ are used to test hypotheses that do not involve specific population parameters such as
μ, σ, or r.
________________________________________

Accepted Answer

Nonparamet

What is the term for a nonparametric test that is used to determine the randomness of a sample?

What is another term for nonparametric statistics?

If data is normally distributed, then the Wilcoxon signed-rank test is more powerful than the t-test.

When using the Kruskal-Wallis test to compare three or more means, it is necessary to consider all data values together and then rank them.

Test the following sequence for randomness. B A A A A B A B B B B A A A 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.

Two independent samples of tall and short students are selected, and their scores on a 25-point statistics quiz are recorded as shown in the table below.What is the rank of the score for Wilt?

A man wanted to see if the median time to get to work was at least 15 minutes.In a random sample of 40 days, he found that 30 days took more than 15 minutes and the rest took less than 15 minutes.Is there Enough evidence to support his claim if he uses an =.05?

A student wanted to see if the median number of Facebook friends is more than 200.For a random sample of 42 people, 30 people had more than 200 friends while the rest had less than 200 friends.Find the value of the test statistic.

When the sample size is 26 or more, the normal approximation can be used to find the test value when performing the sign test on a sample.The test is now referred to as a:

If a researcher wanted to prove that there is a relationship between two variables and had collected 30 data points for each group, the Spearman rank correlation coefficient could be used, but Pearson's correlation coefficient would be a better choice for a test method.

It was thought that hypnosis would lower a person's need to smoke.A researcher decided to investigate this hypothesis using the paired-sample sign test.Given that the critical value for Ten samples at (single-sided) is 1, is there enough evidence to support the hypothesis?

Given the following data, what is the ranking of data point 27? 30, 30, 20, 33, 37, 32, 15, 27

A researcher tests three different brands of 2% milk to see how many grams of fat are in each 8 ounce glass.The results are shown below. What is the sum of the ranks of Brand A?

A statistics teacher wanted to see whether students exit the classroom at random.He observes students leaving in the order given below.How many runs are present? Test for randomness at .

Nonparametric tests and statistics can be used in place of their parametric counterparts when the assumption of cannot be met. __________________________

Given the following data, what is the ranking of data point 15? 16, 18, 12, 19, 15, 20, 13, 18

_ are used to test hypotheses that do not involve specific population parameters such as μ, σ, or r. __________________________

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

What is the term for a nonparametric test that is used to determine the randomness of a sample?

What is another term for nonparametric statistics?

If data is normally distributed, then the Wilcoxon signed-rank test is more powerful than the t-test.

When using the Kruskal-Wallis test to compare three or more means, it is necessary to consider all data values together and then rank them.

Test the following sequence for randomness. B A A A A B A B B B B A A A 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.

Two independent samples of tall and short students are selected, and their scores on a 25-point statistics quiz are recorded as shown in the table below.What is the rank of the score for Wilt?

A man wanted to see if the median time to get to work was at least 15 minutes.In a random sample of 40 days, he found that 30 days took more than 15 minutes and the rest took less than 15 minutes.Is there Enough evidence to support his claim if he uses an =.05?

A student wanted to see if the median number of Facebook friends is more than 200.For a random sample of 42 people, 30 people had more than 200 friends while the rest had less than 200 friends.Find the value of the test statistic.

When the sample size is 26 or more, the normal approximation can be used to find the test value when performing the sign test on a sample.The test is now referred to as a:

If a researcher wanted to prove that there is a relationship between two variables and had collected 30 data points for each group, the Spearman rank correlation coefficient could be used, but Pearson's correlation coefficient would be a better choice for a test method.

It was thought that hypnosis would lower a person's need to smoke.A researcher decided to investigate this hypothesis using the paired-sample sign test.Given that the critical value for Ten samples at (single-sided) is 1, is there enough evidence to support the hypothesis?

Given the following data, what is the ranking of data point 27? 30, 30, 20, 33, 37, 32, 15, 27

A researcher tests three different brands of 2% milk to see how many grams of fat are in each 8 ounce glass.The results are shown below. What is the sum of the ranks of Brand A?

A statistics teacher wanted to see whether students exit the classroom at random.He observes students leaving in the order given below.How many runs are present? Test for randomness at .

Nonparametric tests and statistics can be used in place of their parametric counterparts when the assumption of ______________ cannot be met. ________________________________________

Given the following data, what is the ranking of data point 15? 16, 18, 12, 19, 15, 20, 13, 18

_______________ are used to test hypotheses that do not involve specific population parameters such as μ, σ, or r. ________________________________________

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

Nonparametric tests and statistics can be used in place of their parametric counterparts when the assumption of cannot be met. __________________________

_ are used to test hypotheses that do not involve specific population parameters such as μ, σ, or r. __________________________