Exam 15: Frequency Distribution, Cross-Tabulation, and Hypothesis Testing

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________ is a test statistic that measures the association between two ordinal-level variables. It makes an adjustment for ties and is most appropriate when the table of variables is not square but a rectangle.

(Multiple Choice)

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Question 61

The median is an appropriate measure of central tendency for ________ data.

(Multiple Choice)

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Question 62

The value obtained by summing all elements in a set and dividing by the number of elements is the ________.

(Multiple Choice)

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Question 63

The ________ is a statistic that assumes that the variable has a symmetric bell-shaped distribution and the mean is known (or assumed to be known)and the population variance is estimated from the sample.

(Multiple Choice)

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Question 64

To balance the two types of errors, alpha (α), also known as ________, is often set at .01 or .05.

(Multiple Choice)

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Question 65

________ are hypothesis testing procedures that assume that the variables of interest are measured on at least an interval scale.

(Multiple Choice)

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Question 66

A statistic that describes a location within a data set is a ________.

(Multiple Choice)

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Question 67

In a frequency distribution, two variables are considered at a time.

(True/False)

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Question 68

When measuring the strength of association with the contingency coefficient, the maximum value of 1 is achieved when the variables are perfectly associated.

(True/False)

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Question 69

The null hypothesis is always the hypothesis that is tested.

(True/False)

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Question 70

The ________ is the difference between the 75th and 25th percentile.

(Multiple Choice)

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Question 71

The ________ test is a nonparametric test for examining differences in the location of two populations, based on paired observations, that compares only the signs of the differences between pairs of variables without taking into account the magnitude of the differences.

(Multiple Choice)

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Question 72

When conducting cross-tabulation analysis in practice, if H₀ is rejected, the pattern of the relationship should be interpreted by computing an appropriate statistic (phi coefficient, contingency, Cramer's V, lambda coefficient, or other statistics).

(True/False)

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Question 73

The ________ is the ratio of the standard deviation to the mean, expressed as a percentage, and it is a unitless measure of relative variability.

(Multiple Choice)

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Question 74

If the entire sample is changed by adding a fixed constant to each observation, then the mean, variance, and median change by the same fixed amount.

(True/False)

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Question 75

The last step involved in hypothesis testing is ________.

(Multiple Choice)

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Question 76

If all the data points are multiplied by a constant, the interquartile range is multiplied by the same constant.

(True/False)

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Question 77

The two-sample median test is not as powerful as the Mann-Whitney U test.

(True/False)

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Question 78

________ include the range, interquartile range, variance or standard deviation, and coefficient of variation.

(Multiple Choice)

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Question 79

Which of the research questions/hypotheses below is best answered using hypothesis testing?

(Multiple Choice)

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Question 80

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Exam 15: Frequency Distribution, Cross-Tabulation, and Hypothesis Testing

________ is a test statistic that measures the association between two ordinal-level variables. It makes an adjustment for ties and is most appropriate when the table of variables is not square but a rectangle.

The median is an appropriate measure of central tendency for ________ data.

The value obtained by summing all elements in a set and dividing by the number of elements is the ________.

The ________ is a statistic that assumes that the variable has a symmetric bell-shaped distribution and the mean is known (or assumed to be known)and the population variance is estimated from the sample.

To balance the two types of errors, alpha (α), also known as ________, is often set at .01 or .05.

________ are hypothesis testing procedures that assume that the variables of interest are measured on at least an interval scale.

A statistic that describes a location within a data set is a ________.

In a frequency distribution, two variables are considered at a time.

When measuring the strength of association with the contingency coefficient, the maximum value of 1 is achieved when the variables are perfectly associated.

The null hypothesis is always the hypothesis that is tested.

The ________ is the difference between the 75th and 25th percentile.

The ________ test is a nonparametric test for examining differences in the location of two populations, based on paired observations, that compares only the signs of the differences between pairs of variables without taking into account the magnitude of the differences.

When conducting cross-tabulation analysis in practice, if H0 is rejected, the pattern of the relationship should be interpreted by computing an appropriate statistic (phi coefficient, contingency, Cramer's V, lambda coefficient, or other statistics).

The ________ is the ratio of the standard deviation to the mean, expressed as a percentage, and it is a unitless measure of relative variability.

If the entire sample is changed by adding a fixed constant to each observation, then the mean, variance, and median change by the same fixed amount.

The last step involved in hypothesis testing is ________.

If all the data points are multiplied by a constant, the interquartile range is multiplied by the same constant.

The two-sample median test is not as powerful as the Mann-Whitney U test.

________ include the range, interquartile range, variance or standard deviation, and coefficient of variation.

Which of the research questions/hypotheses below is best answered using hypothesis testing?

Introduction to Marketing Research

Defining the Marketing Research Problem and Developing an Approach

Research Design

Exploratory Research Design: 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 Preparation

Analysis of Variance and Covariance

Correlation and Regression

Discriminant and Logit Analysis

Factor Analysis

Cluster Analysis

Multidimensional Scaling and Conjoint Analysis

Structural Equation Modeling and Path Analysis

Report Preparation and Presentation

International Marketing Research

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When conducting cross-tabulation analysis in practice, if H₀ is rejected, the pattern of the relationship should be interpreted by computing an appropriate statistic (phi coefficient, contingency, Cramer's V, lambda coefficient, or other statistics).