Exam 12: Using Basic Descriptive Analysis, Performing Population Estimates, and Testing Hypotheses

If the null hypothesis is true,when you subtract one group mean from the other,the result should be zero or a negative number.

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(True/False)

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Question 1

Correct Answer:

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False

Meaningfulness,stability,and actionability are statistical issues;they are not within the purview of a marketing manager.

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Question 2

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What is the option a researcher may use to determine where the pair(s)of statistically significant differences between the means exist(s)? What options are available within SPSS to provide assistance? Of the options,which one provides the"best picture"and why?

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Question 3

Correct Answer:

Verified

Students should state that post hoc tests are options available to determine where the pair(s)of statistically significant differences between the means exist(s).Answers may state that post hoc tests are a type of ANOVA test.Comments should mention that SPSS contains at least a dozen of these tests from which to choose.However,answers will mention Duncan's multiple range test as the most often used of these tests.The advantage of Duncan's multiple range test is that it provides output that is mostly a"picture"of what means are significantly different,and it is much less statistical than most of the other post hoc tests.

ANOVA will"signal"when at least one pair of means has a statistically significant difference,but will tell which pair.

(True/False)

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Question 4

The t test is defined as the statistical inference test to be used with large samples sizes(n ? 30).

(True/False)

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Question 5

ANOVA is used when comparing the means of three or more groups.

(True/False)

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Question 6

One commonly used basis for market segmentation is the discovery of(1)statistically significant, (2)meaningful, (3)stable,and(4)actionable differences.

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Question 7

________ means that a marketer can focus various marketing strategies and tactics,such as product design or advertising,on the market segments to accentuate the differences between the segments.

(Multiple Choice)

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Question 8

How does a marketing researcher handle making comparisons between two groups of respondents to determine whether or not there are statistically significant differences between them?

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Question 9

To test whether a true difference exists between two group percentages,we test the:

(Multiple Choice)

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Question 10

The procedure for testing significance of difference between two means from two different groups(either two different samples or two different groups in the same sample)is ________ the procedure used in testing two percentages.

(Multiple Choice)

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Question 11

The procedure for testing significance of difference between two means from two different groups is identical to that used in testing two percentages.However,the equations differ because a scale variable is involved.

(True/False)

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Question 12

A researcher has two percentages and wants to know if the percentages are statistically different.The researcher calculates the z value and finds that it is 4.21.This means that the two percentages:

(Multiple Choice)

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Question 13

When the sample size is 30 or greater it requires the use of a ________.

(Multiple Choice)

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Question 14

When using a paired samples test for the difference between two means,________;otherwise,the test would be analyzing differences.

(Multiple Choice)

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Question 15

Differences are important,but a finding of statistical significance in no way guarantees which of the following?

(Multiple Choice)

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Question 16

Another advantage of using ANOVA is that it ________ so the significant differences can be located and interpreted easily.

(Multiple Choice)

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Question 17

Independent samples are treated as representing two potentially different populations.

(True/False)

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Question 18

SPSS does not perform tests of the significance of the difference between the percentages of two groups,but the researcher can use SPSS to generate the relevant information and perform a hand calculation.

(True/False)

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Question 19

When a marketing researcher is interested in making comparisons between two groups of respondents to determine whether or not there are statistically significant differences between them,in concept,the researcher is considering them as:

(Multiple Choice)

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Question 20

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If the null hypothesis is true,when you subtract one group mean from the other,the result should be zero or a negative number.

Meaningfulness,stability,and actionability are statistical issues;they are not within the purview of a marketing manager.

What is the option a researcher may use to determine where the pair(s)of statistically significant differences between the means exist(s)? What options are available within SPSS to provide assistance? Of the options,which one provides the"best picture"and why?

ANOVA will"signal"when at least one pair of means has a statistically significant difference,but will tell which pair.

The t test is defined as the statistical inference test to be used with large samples sizes(n ? 30).

ANOVA is used when comparing the means of three or more groups.

One commonly used basis for market segmentation is the discovery of(1)statistically significant, (2)meaningful, (3)stable,and(4)actionable differences.

________ means that a marketer can focus various marketing strategies and tactics,such as product design or advertising,on the market segments to accentuate the differences between the segments.

How does a marketing researcher handle making comparisons between two groups of respondents to determine whether or not there are statistically significant differences between them?

To test whether a true difference exists between two group percentages,we test the:

The procedure for testing significance of difference between two means from two different groups(either two different samples or two different groups in the same sample)is ________ the procedure used in testing two percentages.

The procedure for testing significance of difference between two means from two different groups is identical to that used in testing two percentages.However,the equations differ because a scale variable is involved.

A researcher has two percentages and wants to know if the percentages are statistically different.The researcher calculates the z value and finds that it is 4.21.This means that the two percentages:

When the sample size is 30 or greater it requires the use of a ________.

When using a paired samples test for the difference between two means,________;otherwise,the test would be analyzing differences.

Differences are important,but a finding of statistical significance in no way guarantees which of the following?

Another advantage of using ANOVA is that it ________ so the significant differences can be located and interpreted easily.

Independent samples are treated as representing two potentially different populations.

SPSS does not perform tests of the significance of the difference between the percentages of two groups,but the researcher can use SPSS to generate the relevant information and perform a hand calculation.

When a marketing researcher is interested in making comparisons between two groups of respondents to determine whether or not there are statistically significant differences between them,in concept,the researcher is considering them as:

Introduction to Marketing Research

The Marketing Research Industry

The Marketing Research Process & Defining the Problem and Research Objectives

Research Design

Secondary Data & Packaged Information

Utilizing Exploratory and Qualitative Research Techniques

Evaluating Survey Data Collection Methods

Understanding Measurement, Developing Questions, and Designing the Questionnaire

Selecting the Sample

Determining the Size of a Sample

Dealing with Fieldwork and Data Quality

Using Basic Descriptive Analysis Performing Population Estimates and Testing Hypotheses

Making Use of Associations Tests

Understanding Regression Analysis Basics

Writing the Research Report

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