Question 1

A researcher should consider answers to all of the following questions except _____ when selecting a particular test of significance.

Accepted Answer

A)  how many samples are involved in the test? 
B)  are the samples related? 
C)  what type of data is involved? 
D)  what is the level of significance? 
E)  all of the above should be addressed 
A)  how many samples are involved in the test? 
B)  are the samples related? 
C)  what type of data is involved? 
D)  what is the level of significance? 
E)  all of the above should be addressed

Question 2

The null hypothesis is typically rejected when _____.

Accepted Answer

A)  the calculated value is smaller than the critical value 
B)  the critical value is smaller than the calculated value 
C)  the level of significance chosen is .05 
D)  a chi-square statistic is computed 
E)  the Z score approaches 1 
A)  the calculated value is smaller than the critical value 
B)  the critical value is smaller than the calculated value 
C)  the level of significance chosen is .05 
D)  a chi-square statistic is computed 
E)  the Z score approaches 1

Question 3

If a data difference is NOT caused only by random sampling fluctuations,and its size is important to the organizational decision maker,it is said to have _____.

Accepted Answer

A)  resistance 
B)  statistical significance 
C)  substantive significance 
D)  reasonable doubt 
E)  practical significance 
A)  resistance 
B)  statistical significance 
C)  substantive significance 
D)  reasonable doubt 
E)  practical significance

Question 4

If the hypothesis presented is tested using a .05 alpha level and the resulting p value is .01,which of the following interpretations of the results is most appropriate?

Accepted Answer

A)  There is no relationship between income and food expenditures 
B)  There is a relationship between income and food expenditures 
C)  As income increases, food expenditures increase 
D)  As income decreases, the percentage of income spent on food increases 
E)  None of the above 
A)  There is no relationship between income and food expenditures 
B)  There is a relationship between income and food expenditures 
C)  As income increases, food expenditures increase 
D)  As income decreases, the percentage of income spent on food increases 
E)  None of the above

Question 5

_____ occurs when the sample results lead to the rejection of a null hypothesis that is in fact true.

Accepted Answer

A)  Type I error 
B)  Two-tailed error 
C)  Type II error 
D)  One-tailed error 
E)  Parametric significance 
A)  Type I error 
B)  Two-tailed error 
C)  Type II error 
D)  One-tailed error 
E)  Parametric significance

Question 6

Which of the following statements is NOT correct about the alternative hypothesis?

Accepted Answer

A)  It may be directional or nondirectional 
B)  The alternative hypothesis represents the conclusion for which evidence is sought 
C)  The alternative hypothesis is the opposite of the null hypothesis 
D)  It is always the hypothesis tested 
E)  None of the statements are correct 
A)  It may be directional or nondirectional 
B)  The alternative hypothesis represents the conclusion for which evidence is sought 
C)  The alternative hypothesis is the opposite of the null hypothesis 
D)  It is always the hypothesis tested 
E)  None of the statements are correct

Question 7

Also known as beta error,_____ occurs when the sample results lead to the nonrejection of a null hypothesis that is in fact false.

Accepted Answer

A)  type I error 
B)  two-tailed error 
C)  type II error 
D)  one-tailed error 
A)  type I error 
B)  two-tailed error 
C)  type II error 
D)  one-tailed error

Question 8

Which of the following is true of a one-sample chi-square test?

Accepted Answer

A)  The null hypothesis is that the actual frequencies in each category is different than those hypothesized 
B)  The greater the difference between the actual and hypothesized frequencies in a category, the more likely the difference can be attributed to chance 
C)  The value of the X2 statistic expresses the extent of the difference between the actual and hypothesized frequencies 
D)  The larger the divergence, the smaller the X2 value 
E)  A X2 statistic is significant if it is less than .05 
A)  The null hypothesis is that the actual frequencies in each category is different than those hypothesized 
B)  The greater the difference between the actual and hypothesized frequencies in a category, the more likely the difference can be attributed to chance 
C)  The value of the X2 statistic expresses the extent of the difference between the actual and hypothesized frequencies 
D)  The larger the divergence, the smaller the X2 value 
E)  A X2 statistic is significant if it is less than .05

Question 9

The hypothesis that men and women use the Internet approximately the same number of hours per week is a _____ hypothesis.

Accepted Answer

A)  null 
B)  one-tailed test 
C)  two-tailed test 
D)  test of proportions 
E)  test of means 
A)  null 
B)  one-tailed test 
C)  two-tailed test 
D)  test of proportions 
E)  test of means

Question 10

Define the null and alternative hypotheses.Discuss the relationship between the two hypotheses.

Accepted Answer

A null hypothesis is a statement of the

Question 11

Which of the following hypotheses is a one-tailed test?

Accepted Answer

A)  Hybrid cars get better gas mileage than traditional cars 
B)  There is a difference in the gas mileage of cars and trucks 
C)  There is no difference in gas mileage among two-door and four-door vehicles 
D)  There is a relationship between the number of miles to one's job and the gas mileage associated with his or her chosen car 
E)  All of the above are one-tailed tests 
A)  Hybrid cars get better gas mileage than traditional cars 
B)  There is a difference in the gas mileage of cars and trucks 
C)  There is no difference in gas mileage among two-door and four-door vehicles 
D)  There is a relationship between the number of miles to one's job and the gas mileage associated with his or her chosen car 
E)  All of the above are one-tailed tests

Question 12

The _____ is the probability of rejecting the null hypothesis when it is in fact false,and should be rejected.

Accepted Answer

A)  type I error 
B)  level of significance 
C)  type II error 
D)  power of a test 
E)  Z score 
A)  type I error 
B)  level of significance 
C)  type II error 
D)  power of a test 
E)  Z score

Question 13

Jeremy is using an ANOVA to examine the alternative hypothesis that brand loyalty is higher among frequent fliers of Jet Blue than the reported brand loyalty of frequent fliers on United,US Airways,and Delta.If the p value is less than .05 and the F ratio is greater than 1,which of the following interpretations is correct?

Accepted Answer

A)  Jet Blue has higher brand loyalty among its frequent fliers than do the other three airlines examined 
B)  There is no difference in brand loyalty among customers of the four airlines 
C)  There is a difference in brand loyalty among customers of the four airlines 
D)  Jet Blue has lower brand loyalty among its frequent fliers than do the other three airlines 
E)  No interpretation can be made with the information available 
A)  Jet Blue has higher brand loyalty among its frequent fliers than do the other three airlines examined 
B)  There is no difference in brand loyalty among customers of the four airlines 
C)  There is a difference in brand loyalty among customers of the four airlines 
D)  Jet Blue has lower brand loyalty among its frequent fliers than do the other three airlines 
E)  No interpretation can be made with the information available

Question 14

Which of the following tests is most appropriate for examining differences in the average number of hours spent viewing television among four different age groups?

Accepted Answer

A)  Z test 
B)  t-test 
C)  ANOVA 
D)  X2 
E)  McNemar test 
A)  Z test 
B)  t-test 
C)  ANOVA 
D)  X2 
E)  McNemar test

Question 15

In which of the following situations should an a priori contrast be used?

Accepted Answer

A)  A t-test is used to conclude that men consume more hamburgers than women 
B)  A chi-square test is used to conclude that there is a difference in type of living quarters by class status 
C)  Using a one-way ANOVA, significant differences in ad recall are found between three experimental groups and one control group 
D)  A Z test indicates that the national average of the number of soft drinks consumed in the US exceeds that of France 
E)  All of the above should use an a priori contrast 
A)  A t-test is used to conclude that men consume more hamburgers than women 
B)  A chi-square test is used to conclude that there is a difference in type of living quarters by class status 
C)  Using a one-way ANOVA, significant differences in ad recall are found between three experimental groups and one control group 
D)  A Z test indicates that the national average of the number of soft drinks consumed in the US exceeds that of France 
E)  All of the above should use an a priori contrast

Question 16

Which of the following involves a test of two-independent samples?

Accepted Answer

A)  Test of differences in the percent of men and women who are or are not members of Greek organizations on campus 
B)  Test of the average incomes of magazine subscribers of Southern Living verses Better Homes and Gardens 
C)  Test of whether the mean salary of professors at Metro University is higher than the national average for university professors 
D)  Test of whether a change occurred in the likelihood of heart disease among people who switched to a diet high in fish 
E)  Test of differences in ad recall among three experimental groups (each of which saw a different advertisement) and a control group 
A)  Test of differences in the percent of men and women who are or are not members of Greek organizations on campus 
B)  Test of the average incomes of magazine subscribers of Southern Living verses Better Homes and Gardens 
C)  Test of whether the mean salary of professors at Metro University is higher than the national average for university professors 
D)  Test of whether a change occurred in the likelihood of heart disease among people who switched to a diet high in fish 
E)  Test of differences in ad recall among three experimental groups (each of which saw a different advertisement) and a control group

A researcher should consider answers to all of the following questions except _____ when selecting a particular test of significance.

The null hypothesis is typically rejected when _____.

If a data difference is NOT caused only by random sampling fluctuations,and its size is important to the organizational decision maker,it is said to have _____.

If the hypothesis presented is tested using a .05 alpha level and the resulting p value is .01,which of the following interpretations of the results is most appropriate?

_____ occurs when the sample results lead to the rejection of a null hypothesis that is in fact true.

Which of the following statements is NOT correct about the alternative hypothesis?

Also known as beta error,_____ occurs when the sample results lead to the nonrejection of a null hypothesis that is in fact false.

Which of the following is true of a one-sample chi-square test?

The hypothesis that men and women use the Internet approximately the same number of hours per week is a _____ hypothesis.

Define the null and alternative hypotheses.Discuss the relationship between the two hypotheses.

Which of the following hypotheses is a one-tailed test?

The _____ is the probability of rejecting the null hypothesis when it is in fact false,and should be rejected.

Which of the following tests is most appropriate for examining differences in the average number of hours spent viewing television among four different age groups?

In which of the following situations should an a priori contrast be used?

Which of the following involves a test of two-independent samples?

Research in Business

Ethics in Business Research

Thinking Like a Researcher

The Research Process: an Overview

Clarifying the Research Question Through Secondary Data and Exploration

Research Design: An Overview

Qualitative Research

Observation Studies

Experiments

Surveys

Measurement

Measurement Scales

Questionnaires and Instruments

Sampling

Data Preparation and Description

Exploring,Displaying,and Examining Data

Measures of Association

Presenting Insights and Findings: Written Reports

Presenting Insights and Findings: Oral Presentations

Appendix 1A: How the Industry Works

Appendix 5A and 5B: Bibliographic Database Searchers and Advanced Searches

Appendix 9B: Test Markets

Appendix: Multivariate Supplement

Filters

Exam 17: Hypothesis Testing

A researcher should consider answers to all of the following questions except _____ when selecting a particular test of significance.

The null hypothesis is typically rejected when _____.

If a data difference is NOT caused only by random sampling fluctuations,and its size is important to the organizational decision maker,it is said to have _____.

If the hypothesis presented is tested using a .05 alpha level and the resulting p value is .01,which of the following interpretations of the results is most appropriate?

_____ occurs when the sample results lead to the rejection of a null hypothesis that is in fact true.

Which of the following statements is NOT correct about the alternative hypothesis?

Also known as beta error,_____ occurs when the sample results lead to the nonrejection of a null hypothesis that is in fact false.

Which of the following is true of a one-sample chi-square test?

The hypothesis that men and women use the Internet approximately the same number of hours per week is a _____ hypothesis.

Define the null and alternative hypotheses.Discuss the relationship between the two hypotheses.

Which of the following hypotheses is a one-tailed test?

The _____ is the probability of rejecting the null hypothesis when it is in fact false,and should be rejected.

Which of the following tests is most appropriate for examining differences in the average number of hours spent viewing television among four different age groups?

In which of the following situations should an a priori contrast be used?

Which of the following involves a test of two-independent samples?

Research in Business

Ethics in Business Research

Thinking Like a Researcher

The Research Process: an Overview

Clarifying the Research Question Through Secondary Data and Exploration

Research Design: An Overview

Qualitative Research

Observation Studies

Experiments

Surveys

Measurement

Measurement Scales

Questionnaires and Instruments

Sampling

Data Preparation and Description

Exploring,Displaying,and Examining Data

Measures of Association

Presenting Insights and Findings: Written Reports

Presenting Insights and Findings: Oral Presentations

Appendix 1A: How the Industry Works

Appendix 5A and 5B: Bibliographic Database Searchers and Advanced Searches

Appendix 9B: Test Markets

Appendix: Multivariate Supplement

Filters