Question 1

A(n)________ is commonly used for the purpose of providing inferences for making statements about the means of parent populations.

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 2

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 z-test.

Accepted Answer

A) True 
 B)False

Question 3

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 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

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 7

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

Accepted Answer

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

Question 8

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 9

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

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

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 13

Which of the following is the first step in hypothesis testing based on the t statistic?

Accepted Answer

A)  Select the appropriate formula for the t statistic. 
B)  Take one or two samples and compute the mean. 
C)  Select a significance level α for testing. 
D)  Refer to statistical tables. 
E)  Formulate the null (H₀) and the alternative (H₁) hypotheses. 
A)  Select the appropriate formula for the t statistic. 
B)  Take one or two samples and compute the mean. 
C)  Select a significance level α for testing. 
D)  Refer to statistical tables. 
E)  Formulate the null (H₀) and the alternative (H₁) hypotheses.

Question 14

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

Accepted Answer

A)  a statistic 
B)  p statistic 
C)  t statistic 
D)  z statistic 
E)  bell statistic 
A)  a statistic 
B)  p statistic 
C)  t statistic 
D)  z statistic 
E)  bell statistic

Question 15

According to the text,the t distribution is similar to the ________ in appearance.

Accepted Answer

A)  parallel distribution 
B)  normal distribution 
C)  vertical distribution 
D)  horizontal distribution 
E)  chi-square distribution 
A)  parallel distribution 
B)  normal distribution 
C)  vertical distribution 
D)  horizontal distribution 
E)  chi-square distribution

Question 16

Significance of the overall effect indicates that some differences exist between some of the treatment groups.

Accepted Answer

A) True 
 B)False

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

Accepted Answer

A) True 
 B)False

Question 19

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 20

Recently,the competition between Kodak and Fuji has been intensifying.Kodak has reportedly been analyzing films made by Fuji,and Sam's Choice to determine the secrets of these other brands supposedly bright colors.As part of an analysis,a random sample of camera film from Kodak,Fuji,and Sam's Choice was used to take photos under identical light conditions.The film was developed under identical conditions and then tested photochemically to determine photo brightness.With higher values indicating brighter film,do the three brands of film have the same brightness? State the hypotheses for this test.Show your work.
  
$$\text { Fill in the missing blocks of the ANOVA table below. }$$ 
 $$\begin{array} { | l | r | l | l | l | l | } 
\hline & \begin{array} { l } 
\text { Sum of } \
\text { Squares }
\end{array} & \text { df } & \text { Mean Square } & \text { F } & \text { Sig. } \
\hline \text { Between } & 53.733 & & & & \
\text { Groups } & 64.000 & & & & .026 \
\text { Within Groups } & 117.733 & & & & \
\hline \text { Total } & & & & \
\hline
\end{array}$$

Accepted Answer

H₀: All the means are the same.H₁: Not H

A(n)________ is commonly used for the purpose of providing inferences for making statements about the means of parent populations.

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 z-test.

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

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

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

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

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

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

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

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

Which of the following is the first step in hypothesis testing based on the t statistic?

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

According to the text,the t distribution is similar to the ________ in appearance.

Significance of the overall effect indicates that some differences exist between some of the treatment groups.

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

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

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.

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

A(n)________ is commonly used for the purpose of providing inferences for making statements about the means of parent populations.

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 z-test.

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

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

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

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

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

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

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

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

Which of the following is the first step in hypothesis testing based on the t statistic?

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

According to the text,the t distribution is similar to the ________ in appearance.

Significance of the overall effect indicates that some differences exist between some of the treatment groups.

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

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

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.

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