Question 1

The ________ is a symmetric bell-shaped distribution that is useful for small sample testing.

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 2

________ is a statistical technique for examining the differences among means for two or more populations.

Accepted Answer

A)  Paired samples t-test 
B)  Factor analysis 
C)  Distribution of variance 
D)  Analysis of variance 
E)  Discriminant analysis 
A)  Paired samples t-test 
B)  Factor analysis 
C)  Distribution of variance 
D)  Analysis of variance 
E)  Discriminant analysis

Question 3

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

Accepted Answer

A)  either -1.96 or 1.96 
B)  either -4.0 or 4.0 
C)  either -1.25 or 1.25 
D)  either -1.71 or 1.71 
E)  either -1.645 or 1.645 
A)  either -1.96 or 1.96 
B)  either -4.0 or 4.0 
C)  either -1.25 or 1.25 
D)  either -1.71 or 1.71 
E)  either -1.645 or 1.645

Question 4

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 5

All of the following are types of tests of differences EXCEPT:

Accepted Answer

A)  one sample. 
B)  two independent samples. 
C)  paired samples. 
D)  more than two samples. 
E)  unitary samples. 
A)  one sample. 
B)  two independent samples. 
C)  paired samples. 
D)  more than two samples. 
E)  unitary samples.

Question 6

In the case of conducting the t-test on the means of two samples of observations, the samples can be ________ or ________.

Accepted Answer

A)  independent; random 
B)  random; exclusive 
C)  exclusive; dependent 
D)  independent; paired 
E)  set-up; breakdown 
A)  independent; random 
B)  random; exclusive 
C)  exclusive; dependent 
D)  independent; paired 
E)  set-up; breakdown

Question 7

A ________ is a univariate 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 8

Two samples that are not experimentally related are called dependent samples.

Accepted Answer

A) True 
 B)False

Question 9

The most popular parametric test is the t-test conducted for examining hypotheses about means.

Accepted Answer

A) True 
 B)False

Question 10

Examples of hypotheses related to paired samples include all of the following EXCEPT:

Accepted Answer

A)  Shoppers consider brand name to be more important than price while purchasing fashion clothing. 
B)  Households spend more money on pizza than they do on hamburgers. 
C)  The proportion of households who subscribe to a daily newspaper exceeds the proportion subscribing to magazines. 
D)  The new service plan will be preferred by at least 70 percent of the customers. 
E)  The proportion of a bank's customers who have a checking account exceeds the proportion who have a savings account. 
A)  Shoppers consider brand name to be more important than price while purchasing fashion clothing. 
B)  Households spend more money on pizza than they do on hamburgers. 
C)  The proportion of households who subscribe to a daily newspaper exceeds the proportion subscribing to magazines. 
D)  The new service plan will be preferred by at least 70 percent of the customers. 
E)  The proportion of a bank's customers who have a checking account exceeds the proportion who have a savings account.

Question 11

One-way analysis of variance involves only one categorical variable, or a single factor that defines the different samples or groups.

Accepted Answer

A) True 
 B)False

Question 12

The null hypothesis of equal means for more than two samples is tested by a(n) ________, which is the ratio of the mean square related to the independent variable to the mean square related to error.

Accepted Answer

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

Question 13

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. 
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.

Question 14

In its simplest form, ANOVA must have a dependent variable that is metric.

Accepted Answer

A) True 
 B)False

Question 15

A two-tailed test is more conservative than the corresponding one-tailed test.

Accepted Answer

A) True 
 B)False

Question 16

A univariate hypothesis test using the t distribution, which is used when the standard deviation is unknown and the sample size is small, is called the ________.

Accepted Answer

A)  t-test 
B)  F-test 
C)  p-test 
D)  z-test 
E)  k-means test 
A)  t-test 
B)  F-test 
C)  p-test 
D)  z-test 
E)  k-means test

Question 17

In the case of conducting the t-test on the means of two samples of observations, the samples can be independent or paired.

Accepted Answer

A) True 
 B)False

Question 18

The critical value of the F distribution depends upon two sets of degrees of freedom-those in the numerator and those in the denominator.

Accepted Answer

A) True 
 B)False

Question 19

A(n) ________ of sample variance may be performed if it is not known whether the two populations have equal variance.

Accepted Answer

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

Question 20

Two samples that are not experimentally related are called ________.

Accepted Answer

A)  independent samples 
B)  dependent samples 
C)  parallel samples 
D)  exclusive samples 
E)  non-experimental samples 
A)  independent samples 
B)  dependent samples 
C)  parallel samples 
D)  exclusive samples 
E)  non-experimental samples

The ________ is a symmetric bell-shaped distribution that is useful for small sample testing.

________ is a statistical technique for examining the differences among means for two or more populations.

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

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

All of the following are types of tests of differences EXCEPT:

In the case of conducting the t-test on the means of two samples of observations, the samples can be or .

A ________ is a univariate hypothesis test using the standard normal distribution.

Two samples that are not experimentally related are called dependent samples.

The most popular parametric test is the t-test conducted for examining hypotheses about means.

Examples of hypotheses related to paired samples include all of the following EXCEPT:

One-way analysis of variance involves only one categorical variable, or a single factor that defines the different samples or groups.

The null hypothesis of equal means for more than two samples is tested by a(n) ________, which is the ratio of the mean square related to the independent variable to the mean square related to error.

Which statement is not true concerning the t distribution?

In its simplest form, ANOVA must have a dependent variable that is metric.

A two-tailed test is more conservative than the corresponding one-tailed test.

A univariate hypothesis test using the t distribution, which is used when the standard deviation is unknown and the sample size is small, is called the ________.

In the case of conducting the t-test on the means of two samples of observations, the samples can be independent or paired.

The critical value of the F distribution depends upon two sets of degrees of freedom-those in the numerator and those in the denominator.

A(n) ________ of sample variance may be performed if it is not known whether the two populations have equal variance.

Two samples that are not experimentally related are called ________.

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 ________ is a symmetric bell-shaped distribution that is useful for small sample testing.

________ is a statistical technique for examining the differences among means for two or more populations.

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

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

All of the following are types of tests of differences EXCEPT:

In the case of conducting the t-test on the means of two samples of observations, the samples can be ________ or ________.

A ________ is a univariate hypothesis test using the standard normal distribution.

Two samples that are not experimentally related are called dependent samples.

The most popular parametric test is the t-test conducted for examining hypotheses about means.

Examples of hypotheses related to paired samples include all of the following EXCEPT:

One-way analysis of variance involves only one categorical variable, or a single factor that defines the different samples or groups.

The null hypothesis of equal means for more than two samples is tested by a(n) ________, which is the ratio of the mean square related to the independent variable to the mean square related to error.

Which statement is not true concerning the t distribution?

In its simplest form, ANOVA must have a dependent variable that is metric.

A two-tailed test is more conservative than the corresponding one-tailed test.

A univariate hypothesis test using the t distribution, which is used when the standard deviation is unknown and the sample size is small, is called the ________.

In the case of conducting the t-test on the means of two samples of observations, the samples can be independent or paired.

The critical value of the F distribution depends upon two sets of degrees of freedom-those in the numerator and those in the denominator.

A(n) ________ of sample variance may be performed if it is not known whether the two populations have equal variance.

Two samples that are not experimentally related are called ________.

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

In the case of conducting the t-test on the means of two samples of observations, the samples can be or .