Question 1

A colleague has asked you what the Jonckheere-Terpstra test assesses. You tell them that it?

Accepted Answer

A)  Does essentially the same thing as the Kruskal-Wallis test 
B)  Does essentially the same thing as the Wilcoxon signed-rank test 
C)  Tests for an ordered pattern to the medians of the groups you're comparing 
D)  Does both a and c 
A)  Does essentially the same thing as the Kruskal-Wallis test 
B)  Does essentially the same thing as the Wilcoxon signed-rank test 
C)  Tests for an ordered pattern to the medians of the groups you're comparing 
D)  Does both a and c D

Question 2

An analyst at your company has told you that the non-parametric equivalent of the paired t-test is the 'non-paired u-test'. You don't believe him, but what is the correct answer?

Accepted Answer

A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test 
A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test B

Question 3

A group of 8 stockbrokers were assessed for the worth of their investments over the course of a year. The following year the CEO reduced the commission rate payable to stockbrokers making good investments. Once again, the value of the broker's annual investment was totalled. The data were not found to be normally distributed. Which non-parametric test should the analyst therefore use on this project?

Accepted Answer

A)  Paired t-test 
B)  Mann-Whitney test 
C)  Wilcoxon signed-rank test 
D)  Wilcoxon rank-sum test 
A)  Paired t-test 
B)  Mann-Whitney test 
C)  Wilcoxon signed-rank test 
D)  Wilcoxon rank-sum test B

Question 4

In an enterprise competition, 10 entrepreneurs are asked to rate two business plans for potential success on a scale of 1(low value) to 5 (high value). What procedure would be used to test the hypothesis that the ratings are not significantly different?

Accepted Answer

A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test 
A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test

Question 5

The data in Q10 produce the following results. What conclusion should be drawn?
Test Statistics (b)

Accepted Answer

A)  There is a significant difference in rating, with Business Plan A being rated higher than Business Plan B. 
B)  There is no significant difference in ratings 
C)  There is a significant difference in rating, with Business Plan A being rated lower than Business Plan B. 
D)  Not enough information is available to make a decision. 
A)  There is a significant difference in rating, with Business Plan A being rated higher than Business Plan B. 
B)  There is no significant difference in ratings 
C)  There is a significant difference in rating, with Business Plan A being rated lower than Business Plan B. 
D)  Not enough information is available to make a decision.

Question 6

The results from Q12 are below. What conclusion should be drawn?
Ranks
 
Test Statistics (a)

Accepted Answer

A)  There is a significant difference in ratings, and Plan B is higher than Plan C which is higher than Plan A. 
B)  There is a significant difference in ratings, with Plan A being higher than Plan C which is higher than Plan B. 
C)  There is no significant difference in ratings, 
D)  Not enough information. 
A)  There is a significant difference in ratings, and Plan B is higher than Plan C which is higher than Plan A. 
B)  There is a significant difference in ratings, with Plan A being higher than Plan C which is higher than Plan B. 
C)  There is no significant difference in ratings, 
D)  Not enough information.

Question 7

What do you think is the primary reason why some business analysts prefer to use parametric tests even when the normality assumption has been violated?

Accepted Answer

A)  Non-parametric tests are harder to carry out. 
B)  Non-parametric tests are less powerful. 
C)  Parametric tests are less robust. 
D)  Parametric tests are more likely to show causal effects. 
A)  Non-parametric tests are harder to carry out. 
B)  Non-parametric tests are less powerful. 
C)  Parametric tests are less robust. 
D)  Parametric tests are more likely to show causal effects.

Question 8

The non-parametric equivalent of the one-way between-measures ANOVA is the?

Accepted Answer

A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test 
A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test

Question 9

The same entrepreneurs in the above study are asked to rate a third business plan (C). What test would be used to see if there is a significant difference in potential success ratings amongst the three business plans, once again assuming that a non-parametric test is necessary?

Accepted Answer

A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test 
A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test

Question 10

A survey was conducted with customers of two gas suppliers - Atomic Gas and English Gas. The objective was to assess whether one group of customers spent more (in £s) on their annual gas bill than the other. Initial tests suggested the absence of normality in the dependent variable. A non-parametric test was deemed appropriate, but which do you think that the researchers should use?

Accepted Answer

A)  Paired t-test 
B)  Mann-Whitney test 
C)  Wilcoxon signed-rank test 
D)  Independent t-test 
A)  Paired t-test 
B)  Mann-Whitney test 
C)  Wilcoxon signed-rank test 
D)  Independent t-test

Question 11

Your manager has asked you to find out the alternative name for 'non-parametric test'. Which of the following will you feed back?

Accepted Answer

A)  Non-normal test 
B)  Data-free test 
C)  Non-continuous test 
D)  Distribution-free test 
A)  Non-normal test 
B)  Data-free test 
C)  Non-continuous test 
D)  Distribution-free test

Question 12

The non-parametric equivalent of the one-way repeated-measures ANOVA is the?

Accepted Answer

A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test 
A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test

Question 13

You would like to test whether male or female managers incubate teams with higher employee satisfaction. You therefore run the Mann-Whitney test on the data. What do you expect will be approximately equal in the two groups if you accept the null hypothesis?

Accepted Answer

A)  Means 
B)  Ranks 
C)  Variance 
D)  Mean ranks 
A)  Means 
B)  Ranks 
C)  Variance 
D)  Mean ranks

Question 14

The non-parametric equivalent of the two-sample independent t-test is the?

Accepted Answer

A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test 
A)  Mann-Whitney test 
B)  Wilcoxon signed-rank test 
C)  Friedman test 
D)  Kruskal-Wallis test

A colleague has asked you what the Jonckheere-Terpstra test assesses. You tell them that it?

An analyst at your company has told you that the non-parametric equivalent of the paired t-test is the 'non-paired u-test'. You don't believe him, but what is the correct answer?

In an enterprise competition, 10 entrepreneurs are asked to rate two business plans for potential success on a scale of 1(low value) to 5 (high value). What procedure would be used to test the hypothesis that the ratings are not significantly different?

The data in Q10 produce the following results. What conclusion should be drawn? Test Statistics (b)

The results from Q12 are below. What conclusion should be drawn? Ranks Test Statistics (a)

What do you think is the primary reason why some business analysts prefer to use parametric tests even when the normality assumption has been violated?

The non-parametric equivalent of the one-way between-measures ANOVA is the?

The same entrepreneurs in the above study are asked to rate a third business plan (C). What test would be used to see if there is a significant difference in potential success ratings amongst the three business plans, once again assuming that a non-parametric test is necessary?

Your manager has asked you to find out the alternative name for 'non-parametric test'. Which of the following will you feed back?

The non-parametric equivalent of the one-way repeated-measures ANOVA is the?

You would like to test whether male or female managers incubate teams with higher employee satisfaction. You therefore run the Mann-Whitney test on the data. What do you expect will be approximately equal in the two groups if you accept the null hypothesis?

The non-parametric equivalent of the two-sample independent t-test is the?

Why Is My Evil Lecturer Forcing Me to Learn Statistic

The Spine of Statistics

The Phoenix of Statistics

The Ibm Spss Statistics Environment

Exploring Data With Graphs

Correlation

Regression

Comparing

Moderation, Mediation and Multicategory Predictors

Comparing Several Means

Analysis of Covariance

Factorial Anova

Repeated-Measures Designs

Mixed Design Anova

Multiple Analysis of Variance Manova

Exploratory Factor Analysis

Categorical Data

Logistic Regression

Multilevel Linear Models

Filters

Exam 7: Non-Parametric Models

A colleague has asked you what the Jonckheere-Terpstra test assesses. You tell them that it?

An analyst at your company has told you that the non-parametric equivalent of the paired t-test is the 'non-paired u-test'. You don't believe him, but what is the correct answer?

In an enterprise competition, 10 entrepreneurs are asked to rate two business plans for potential success on a scale of 1(low value) to 5 (high value). What procedure would be used to test the hypothesis that the ratings are not significantly different?

The data in Q10 produce the following results. What conclusion should be drawn? Test Statistics (b)

The results from Q12 are below. What conclusion should be drawn? Ranks Test Statistics (a)

What do you think is the primary reason why some business analysts prefer to use parametric tests even when the normality assumption has been violated?

The non-parametric equivalent of the one-way between-measures ANOVA is the?

The same entrepreneurs in the above study are asked to rate a third business plan (C). What test would be used to see if there is a significant difference in potential success ratings amongst the three business plans, once again assuming that a non-parametric test is necessary?

Your manager has asked you to find out the alternative name for 'non-parametric test'. Which of the following will you feed back?

The non-parametric equivalent of the one-way repeated-measures ANOVA is the?

You would like to test whether male or female managers incubate teams with higher employee satisfaction. You therefore run the Mann-Whitney test on the data. What do you expect will be approximately equal in the two groups if you accept the null hypothesis?

The non-parametric equivalent of the two-sample independent t-test is the?

Why Is My Evil Lecturer Forcing Me to Learn Statistic

The Spine of Statistics

The Phoenix of Statistics

The Ibm Spss Statistics Environment

Exploring Data With Graphs

Correlation

Regression

Comparing

Moderation, Mediation and Multicategory Predictors

Comparing Several Means

Analysis of Covariance

Factorial Anova

Repeated-Measures Designs

Mixed Design Anova

Multiple Analysis of Variance Manova

Exploratory Factor Analysis

Categorical Data

Logistic Regression

Multilevel Linear Models

Filters