Question 1

The t statistic is calculated by assuming that the sample size is large.

Accepted Answer

A) True 
 B)False  False

Question 2

Which statement is NOT true concerning the t distribution?

Accepted Answer

A) Compared to the normal distribution, the t distribution has more area in the tails and less in the center. 
B) As the number of degrees of freedom increases, the t distribution approaches the normal distribution. 
C) The t distributions are skewed to the left. 
D) The population variance is unknown and is estimated by the sample variance s2. 
E) All are true. 
A) Compared to the normal distribution, the t distribution has more area in the tails and less in the center. 
B) As the number of degrees of freedom increases, the t distribution approaches the normal distribution. 
C) The t distributions are skewed to the left. 
D) The population variance is unknown and is estimated by the sample variance s2. 
E) All are true. C

Question 3

According to the text, hypotheses related to differences in the population means can be tested using the t distribution.

Accepted Answer

A) True 
 B)False  True

Question 4

According to the text, the ________ measures the linear association between two metric variables.

Accepted Answer

A) regression analysis coefficient 
B) covariance coefficient 
C) analysis of variance coefficient 
D) product moment correlation coefficient 
E) F-statistic 
A) regression analysis coefficient 
B) covariance coefficient 
C) analysis of variance coefficient 
D) product moment correlation coefficient 
E) F-statistic

Question 5

In a short essay, define regression analysis and discuss ways in which regression analysis can be used.

Accepted Answer

Regression analysis is a powerful

Question 6

The t statistic is a statistic that assumes that the variable has a symmetric bell-shaped distribution and the mean is known; the population variance is estimated from the sample.

Accepted Answer

A) True 
 B)False

Question 7

In a short essay, discuss t-test, the t statistic, and the t distribution.

Accepted Answer

A t-test is a univariate hypothes

Question 8

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

Accepted Answer

A null hypothesis is a statement of the

Question 9

In multiple regression, the strength of association is measured by the square of the multiple correlation coefficient, which is called the ________.

Accepted Answer

A) coefficient of multiple determination 
B) variance 
C) standard error of the mean 
D) standard deviation 
E) squared deviation 
A) coefficient of multiple determination 
B) variance 
C) standard error of the mean 
D) standard deviation 
E) squared deviation

Question 10

According to the text, hypotheses related to differences in population means if the population variance is unknown can be tested using the ________.

Accepted Answer

A) F distribution 
B) p distribution 
C) t distribution 
D) z distribution 
E) chi-square distribution 
A) F distribution 
B) p distribution 
C) t distribution 
D) z distribution 
E) chi-square distribution

Question 11

An F-test is commonly used for the purpose of providing inferences for making statements about the means of parent populations.

Accepted Answer

A) True 
 B)False

Question 12

In a short essay, discuss multiple regression and the multiple regression model.

Accepted Answer

Multiple regression is a statisti

Question 13

A procedure for deriving a mathematical relationship, in the form of an equation, between a single metric dependent variable and a single metric independent variable is called univariate regression.

Accepted Answer

A) True 
 B)False

Question 14

R2 cannot decrease as more independent variables are added to the regression equation.

Accepted Answer

A) True 
 B)False

Question 15

A test for differences in the means of paired samples is called the ________.

Accepted Answer

A) paired samples t-test 
B) paired samples F-test 
C) paired samples p-test 
D) paired samples z-test 
E) paired samples ratio test 
A) paired samples t-test 
B) paired samples F-test 
C) paired samples p-test 
D) paired samples z-test 
E) paired samples ratio test

Question 16

The two sets of degrees of freedom on which the F distribution depends are the degrees of freedom in the numerator and the degrees of freedom in the denominator.

Accepted Answer

A) True 
 B)False

Question 17

A(n)________ is a hypothesis test using the standard normal distribution.

Accepted Answer

A) F-test 
B) p-test 
C) t-test 
D) z-test 
E) chi-square test 
A) F-test 
B) p-test 
C) t-test 
D) z-test 
E) chi-square test

Question 18

The ________ is the most widely used statistic that summarizes the strength and direction of association between two metric variables.

Accepted Answer

A) covariance correlation 
B) product moment correlation 
C) inverse correlation 
D) bivariate correlation 
E) F-statistic 
A) covariance correlation 
B) product moment correlation 
C) inverse correlation 
D) bivariate correlation 
E) F-statistic

Question 19

________ derives a mathematical equation in the form of a straight line between a single metric criterion variable and a single metric predictor variable.

Accepted Answer

A) Bivariate regression 
B) Standard deviation 
C) Standard error of the mean 
D) Analysis of variance 
E) Functional linear analysis 
A) Bivariate regression 
B) Standard deviation 
C) Standard error of the mean 
D) Analysis of variance 
E) Functional linear analysis

Question 20

If the probability of F is greater than the significance level α, ________ and ________ should be used.

Accepted Answer

A) H0 is rejected; t based on "equal variances not assumed" 
B) H0 is not rejected; t based on "equal variances assumed" 
C) H0 is rejected; t based on "equal variances assumed" 
D) H0 is not rejected; t based on "equal variances not assumed" 
E) H1 is not rejected; t based on "equal variances not assumed" 
A) H0 is rejected; t based on "equal variances not assumed" 
B) H0 is not rejected; t based on "equal variances assumed" 
C) H0 is rejected; t based on "equal variances assumed" 
D) H0 is not rejected; t based on "equal variances not assumed" 
E) H1 is not rejected; t based on "equal variances not assumed"

The t statistic is calculated by assuming that the sample size is large.

Which statement is NOT true concerning the t distribution?

According to the text, hypotheses related to differences in the population means can be tested using the t distribution.

According to the text, the ________ measures the linear association between two metric variables.

In a short essay, define regression analysis and discuss ways in which regression analysis can be used.

The t statistic is a statistic that assumes that the variable has a symmetric bell-shaped distribution and the mean is known; the population variance is estimated from the sample.

In a short essay, discuss t-test, the t statistic, and the t distribution.

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

In multiple regression, the strength of association is measured by the square of the multiple correlation coefficient, which is called the ________.

According to the text, hypotheses related to differences in population means if the population variance is unknown can be tested using the ________.

An F-test is commonly used for the purpose of providing inferences for making statements about the means of parent populations.

In a short essay, discuss multiple regression and the multiple regression model.

A procedure for deriving a mathematical relationship, in the form of an equation, between a single metric dependent variable and a single metric independent variable is called univariate regression.

R² cannot decrease as more independent variables are added to the regression equation.

A test for differences in the means of paired samples is called the ________.

The two sets of degrees of freedom on which the F distribution depends are the degrees of freedom in the numerator and the degrees of freedom in the denominator.

A(n)________ is a hypothesis test using the standard normal distribution.

The ________ is the most widely used statistic that summarizes the strength and direction of association between two metric variables.

________ derives a mathematical equation in the form of a straight line between a single metric criterion variable and a single metric predictor variable.

If the probability of F is greater than the significance level α, and should be used.

Introduction to Marketing Research

Defining the Marketing Research Problem and Developing an Approach

Research Design, Secondary and Syndicated Data

Qualitative Research

Survey and Observation

Experimentation and Causal Research

Measurement and Scaling

Questionnaire and Form Design

Sampling: Design and Procedures

Data Collection and Preparation

Data Analysis: Frequency Distribution, Hypothesis Testing, and Cross-Tabulation

Report Preparation and Presentation

Filters

Exam 12: Data Analysis: Hypothesis Testing Related to Differences, Correlation, and Regression

The t statistic is calculated by assuming that the sample size is large.

Which statement is NOT true concerning the t distribution?

According to the text, hypotheses related to differences in the population means can be tested using the t distribution.

According to the text, the ________ measures the linear association between two metric variables.

In a short essay, define regression analysis and discuss ways in which regression analysis can be used.

The t statistic is a statistic that assumes that the variable has a symmetric bell-shaped distribution and the mean is known; the population variance is estimated from the sample.

In a short essay, discuss t-test, the t statistic, and the t distribution.

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

In multiple regression, the strength of association is measured by the square of the multiple correlation coefficient, which is called the ________.

According to the text, hypotheses related to differences in population means if the population variance is unknown can be tested using the ________.

An F-test is commonly used for the purpose of providing inferences for making statements about the means of parent populations.

In a short essay, discuss multiple regression and the multiple regression model.

A procedure for deriving a mathematical relationship, in the form of an equation, between a single metric dependent variable and a single metric independent variable is called univariate regression.

R2 cannot decrease as more independent variables are added to the regression equation.

A test for differences in the means of paired samples is called the ________.

The two sets of degrees of freedom on which the F distribution depends are the degrees of freedom in the numerator and the degrees of freedom in the denominator.

A(n)________ is a hypothesis test using the standard normal distribution.

The ________ is the most widely used statistic that summarizes the strength and direction of association between two metric variables.

________ derives a mathematical equation in the form of a straight line between a single metric criterion variable and a single metric predictor variable.

If the probability of F is greater than the significance level α, ________ and ________ should be used.

Introduction to Marketing Research

Defining the Marketing Research Problem and Developing an Approach

Research Design, Secondary and Syndicated Data

Qualitative Research

Survey and Observation

Experimentation and Causal Research

Measurement and Scaling

Questionnaire and Form Design

Sampling: Design and Procedures

Data Collection and Preparation

Data Analysis: Frequency Distribution, Hypothesis Testing, and Cross-Tabulation

Report Preparation and Presentation

Filters

R² cannot decrease as more independent variables are added to the regression equation.

If the probability of F is greater than the significance level α, and should be used.