Question 1

The t statistic is calculated by assuming that all of the following exists EXCEPT:

Accepted Answer

A)  the variable is normally distributed. 
B)  the mean is known. 
C)  the population variance is estimated from the sample. 
D)  the sample size is large. 
E)  C and D 
A)  the variable is normally distributed. 
B)  the mean is known. 
C)  the population variance is estimated from the sample. 
D)  the sample size is large. 
E)  C and D

Question 2

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" 
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"

Question 3

According to the text, samples drawn randomly from different populations are termed independent samples.

Accepted Answer

A) True 
 B)False

Question 4

The critical values for a two-tailed z-test, given a significance level of 0.05, would be ________.

Accepted Answer

A)  -1.65 and 1.65 
B)  -4.0 or 4.0 
C)  -1.25 or 1.25 
D)  -1.71 or 1.71 
E)  -1.96 and 1.96 
A)  -1.65 and 1.65 
B)  -4.0 or 4.0 
C)  -1.25 or 1.25 
D)  -1.71 or 1.71 
E)  -1.96 and 1.96

Question 5

In its simplest form, ANOVA must have a(n) ________ that is metric.

Accepted Answer

A)  independent variable 
B)  dependent variable 
C)  insignificant variable 
D)  random variable 
E)  t-test 
A)  independent variable 
B)  dependent variable 
C)  insignificant variable 
D)  random variable 
E)  t-test

Question 6

The sum of squares divided by the appropriate degrees of freedom is called the F statistic.

Accepted Answer

A) True 
 B)False

Question 7

A t-test of sample variance may be performed if it is not known whether the two populations have equal variance.

Accepted Answer

A) True 
 B)False

Question 8

Procedures for examining differences between more than two means are called ________.

Accepted Answer

A)  paired samples t-tests 
B)  analysis of variance 
C)  factor analysis 
D)  distribution of variance 
E)  canonical correlation 
A)  paired samples t-tests 
B)  analysis of variance 
C)  factor analysis 
D)  distribution of variance 
E)  canonical correlation

Question 9

Eta² is the correlation between two variables.

Accepted Answer

A) True 
 B)False

Question 10

According to the text, samples drawn randomly from different populations are termed ________.

Accepted Answer

A)  dependent samples 
B)  parallel samples 
C)  exclusive samples 
D)  independent samples 
E)  divergent samples 
A)  dependent samples 
B)  parallel samples 
C)  exclusive samples 
D)  independent samples 
E)  divergent samples

Question 11

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

Accepted Answer

A t-test is a univariate hypothesis test

Question 12

In many marketing research applications, the observations for two groups are not selected from independent samples. Rather, the observations relate to paired samples in that the two sets of observations relate to the same respondents.

Accepted Answer

A) True 
 B)False

Question 13

The categorical independent variables used in an analysis of variance are called factors.

Accepted Answer

A) True 
 B)False

Question 14

A frequency distribution that depends on two sets of degrees of freedom is called a(n) ________.

Accepted Answer

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

Question 15

In a short essay, discuss analysis of variance and list at least three questions that relate to the examination of the differences in the mean values of more than two groups.

Accepted Answer

Analysis of variance is a statistical te

Question 16

________ involves only one categorical variable, or a single factor that defines the different samples or groups.

Accepted Answer

A)  Two-way analysis of variance 
B)  Parallel analysis of variance 
C)  One-way analysis of variance 
D)  Concurrent analysis of variance 
E)  Unitary analysis of variance 
A)  Two-way analysis of variance 
B)  Parallel analysis of variance 
C)  One-way analysis of variance 
D)  Concurrent analysis of variance 
E)  Unitary analysis of variance

Question 17

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 18

Which would be the appropriate way to test differences in proportions for more than two samples?

Accepted Answer

A)  t-test if variance is unknown 
B)  z-test 
C)  paired t-test 
D)  F-test for equality of variances 
E)  cross-tabulation procedure to conduct a chi-square test 
A)  t-test if variance is unknown 
B)  z-test 
C)  paired t-test 
D)  F-test for equality of variances 
E)  cross-tabulation procedure to conduct a chi-square test

Question 19

A frequency distribution that depends on two sets of degrees of freedom is called an F distribution.

Accepted Answer

A) True 
 B)False

Question 20

For a large sample size, the t distribution approaches the normal distribution. Thus, the t-test and the z-test are equivalent.

Accepted Answer

A) True 
 B)False

The t statistic is calculated by assuming that all of the following exists EXCEPT:

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

According to the text, samples drawn randomly from different populations are termed independent samples.

The critical values for a two-tailed z-test, given a significance level of 0.05, would be ________.

In its simplest form, ANOVA must have a(n) ________ that is metric.

The sum of squares divided by the appropriate degrees of freedom is called the F statistic.

A t-test of sample variance may be performed if it is not known whether the two populations have equal variance.

Procedures for examining differences between more than two means are called ________.

Eta² is the correlation between two variables.

According to the text, samples drawn randomly from different populations are termed ________.

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

In many marketing research applications, the observations for two groups are not selected from independent samples. Rather, the observations relate to paired samples in that the two sets of observations relate to the same respondents.

The categorical independent variables used in an analysis of variance are called factors.

A frequency distribution that depends on two sets of degrees of freedom is called a(n) ________.

In a short essay, discuss analysis of variance and list at least three questions that relate to the examination of the differences in the mean values of more than two groups.

________ involves only one categorical variable, or a single factor that defines the different samples or groups.

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

Which would be the appropriate way to test differences in proportions for more than two samples?

A frequency distribution that depends on two sets of degrees of freedom is called an F distribution.

For a large sample size, the t distribution approaches the normal distribution. Thus, the t-test and the z-test are equivalent.

Introduction to Marketing Research

Defining the Marketing Research Problem and Developing an Approach

Research Design

Exploratory Research Design: Secondary Data

Exploratory Research Design: Syndicated Sources of Secondary Data

Exploratory Research Design: Qualitative Research

Descriptive Research Design: Survey and Observation

Causal Research Design: Experimentation

Measurement and Scaling: Fundamentals and Comparative Scaling

Measurement and Scaling: Noncomparative Scaling Techniques

Questionnaire and Form Design

Sampling: Design and Procedures

Sampling: Final and Initial Sample Size Determination

Fieldwork: Data Collection

Data Preparation and Analysis Strategy

Frequency Distribution, Hypothesis Testing, and Cross-Tabulation

Correlation and Regression

Report Preparation and Presentation

Filters

Exam 17: Hypothesis Testing Related to Differences

The t statistic is calculated by assuming that all of the following exists EXCEPT:

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

According to the text, samples drawn randomly from different populations are termed independent samples.

The critical values for a two-tailed z-test, given a significance level of 0.05, would be ________.

In its simplest form, ANOVA must have a(n) ________ that is metric.

The sum of squares divided by the appropriate degrees of freedom is called the F statistic.

A t-test of sample variance may be performed if it is not known whether the two populations have equal variance.

Procedures for examining differences between more than two means are called ________.

Eta² is the correlation between two variables.

According to the text, samples drawn randomly from different populations are termed ________.

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

In many marketing research applications, the observations for two groups are not selected from independent samples. Rather, the observations relate to paired samples in that the two sets of observations relate to the same respondents.

The categorical independent variables used in an analysis of variance are called factors.

A frequency distribution that depends on two sets of degrees of freedom is called a(n) ________.

In a short essay, discuss analysis of variance and list at least three questions that relate to the examination of the differences in the mean values of more than two groups.

________ involves only one categorical variable, or a single factor that defines the different samples or groups.

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

Which would be the appropriate way to test differences in proportions for more than two samples?

A frequency distribution that depends on two sets of degrees of freedom is called an F distribution.

For a large sample size, the t distribution approaches the normal distribution. Thus, the t-test and the z-test are equivalent.

Introduction to Marketing Research

Defining the Marketing Research Problem and Developing an Approach

Research Design

Exploratory Research Design: Secondary Data

Exploratory Research Design: Syndicated Sources of Secondary Data

Exploratory Research Design: Qualitative Research

Descriptive Research Design: Survey and Observation

Causal Research Design: Experimentation

Measurement and Scaling: Fundamentals and Comparative Scaling

Measurement and Scaling: Noncomparative Scaling Techniques

Questionnaire and Form Design

Sampling: Design and Procedures

Sampling: Final and Initial Sample Size Determination

Fieldwork: Data Collection

Data Preparation and Analysis Strategy

Frequency Distribution, Hypothesis Testing, and Cross-Tabulation

Correlation and Regression

Report Preparation and Presentation

Filters

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