Question 1

________ occurs when the sample results lead to the rejection of a null hypothesis that is in fact true.

Accepted Answer

A) Type I error 
B) Two-tailed error 
C) Type II error 
D) One-tailed error 
A) Type I error 
B) Two-tailed error 
C) Type II error 
D) One-tailed error

Question 2

________ is an average of the two asymmetric lambda values.It does not make an assumption about which variable is dependent.

Accepted Answer

A) Tau b 
B) Symmetric lambda 
C) Tau c 
D) Gamma 
A) Tau b 
B) Symmetric lambda 
C) Tau c 
D) Gamma

Question 3

The chi-square statistic can be estimated on counts of data or on percentages.

Accepted Answer

A) True 
 B)False

Question 4

In hypothesis testing, the observations are paired so that the two sets of observations relate to the same respondents.

Accepted Answer

A) True 
 B)False

Question 5

A statistical technique that describes two or more variables simultaneously and results in tables that reflect the joint distribution of two or more variables that have a limited number of categories or distinct values is a ________.

Accepted Answer

A) t test 
B) non-parametric test 
C) parametric test 
D) cross-tabulation 
A) t test 
B) non-parametric test 
C) parametric test 
D) cross-tabulation

Question 6

In tests of associations, the null hypothesis is that there is no association between the variables (H0:......is NOT related to....).

Accepted Answer

A) True 
 B)False

Question 7

A ________ is a test conducted by determining whether the order or sequence in which observations are obtained is random.

Accepted Answer

A) Mann-Whitney U test 
B) sign test 
C) binomial test 
D) runs test 
A) Mann-Whitney U test 
B) sign test 
C) binomial test 
D) runs test

Question 8

Nonparametric tests are used when the independent variables are nonmetric.

Accepted Answer

A) True 
 B)False

Question 9

The ________ is a statistical test of the equality of the variances of two populations.

Accepted Answer

A) z test 
B) t test 
C) paired samples test 
D) F test 
A) z test 
B) t test 
C) paired samples test 
D) F test

Question 10

The Mann-Whitney U test is a statistical test for a variable measured on an ordinal scale, comparing the difference in the location of two populations based on observations from two independent samples.

Accepted Answer

A) True 
 B)False

Question 11

The ________ is a frequency distribution that depends upon two sets of degrees of freedom, the degrees of freedom in the numerator and the degrees of freedom in the denominator.

Accepted Answer

A) t distribution 
B) Z statistic 
C) chi-square distribution 
D) none of the above 
A) t distribution 
B) Z statistic 
C) chi-square distribution 
D) none of the above

Question 12

If the probability associated with the calculated or observed value of the test statistic (TS CAL)is greater than the level of significance (α), the null hypothesis is rejected.

Accepted Answer

A) True 
 B)False

Question 13

Which statement is not correct about the null hypothesis?

Accepted Answer

A) It is always the hypothesis tested. 
B) Accepting the null hypothesis will lead to some changes in opinions or action. 
C) It can never be accepted based on a single statistical test. 
D) In marketing research, the null hypothesis is formulated in such a way that rejection leads to the acceptance of the desired conclusion. 
A) It is always the hypothesis tested. 
B) Accepting the null hypothesis will lead to some changes in opinions or action. 
C) It can never be accepted based on a single statistical test. 
D) In marketing research, the null hypothesis is formulated in such a way that rejection leads to the acceptance of the desired conclusion.

Question 14

For the parametric case involving the means of paired samples, the null and alternative hypotheses are ________.

Accepted Answer

A) H0:μ1 = μ2 &nbsp&nbsp&nbsp&nbsp&nbsp
&nbsp&nbsp&nbsp&nbspH1:μ1 ≠ μ2 
B) H0:σ12 = σ22 
&nbsp&nbsp&nbsp&nbspH1:σ12 ≠ σ22 
C) H0:μD = 0 
&nbsp&nbsp&nbsp&nbspH1:μD ≠ 0 
D) H0: π1 = π2 
&nbsp&nbsp&nbsp&nbspH1: π1 ≠ π2 
A) H0:μ1 = μ2 &nbsp&nbsp&nbsp&nbsp&nbsp
&nbsp&nbsp&nbsp&nbspH1:μ1 ≠ μ2 
B) H0:σ12 = σ22 
&nbsp&nbsp&nbsp&nbspH1:σ12 ≠ σ22 
C) H0:μD = 0 
&nbsp&nbsp&nbsp&nbspH1:μD ≠ 0 
D) H0: π1 = π2 
&nbsp&nbsp&nbsp&nbspH1: π1 ≠ π2

Question 15

In the context of the Internet usage example, suppose we wanted to test whether the probability of observing a K value of .222, as determined by the normalized z statistic, is 0.103. Because this is more than the significance level of 0.05, the null hypothesis cannot be rejected. What do the results mean?

Accepted Answer

A) The distribution of the Internet usage does deviate significantly from the normal distribution. 
B) The distribution of the Internet usage does not deviate significantly from the normal distribution. 
C) The proportion of users for males and for females is not significantly different for the two samples. 
D) The proportion of users for males and for females is significantly different for the two samples. 
A) The distribution of the Internet usage does deviate significantly from the normal distribution. 
B) The distribution of the Internet usage does not deviate significantly from the normal distribution. 
C) The proportion of users for males and for females is not significantly different for the two samples. 
D) The proportion of users for males and for females is significantly different for the two samples.

Question 16

In a symmetric distribution, the values on either side of the center of the distribution are the same, and the mean mode, and median are equal.

Accepted Answer

A) True 
 B)False

Question 17

The probability of Type II error (α)is also called the level of significance.

Accepted Answer

A) True 
 B)False

Question 18

________ is a modified version of the phi correlation coefficient, Φ.

Accepted Answer

A) Cramer's V 
B) coefficient of variation 
C) Asymmetric lambda 
D) Chi-square statistic 
A) Cramer's V 
B) coefficient of variation 
C) Asymmetric lambda 
D) Chi-square statistic

Question 19

Define the null and alternative hypotheses. Discuss the relationship between the two hypotheses.

Accepted Answer

A null hypothesis is a statement of the

Question 20

The null hypothesis refers to a specified value of the population parameter, not a sample statistic.

Accepted Answer

A) True 
 B)False

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

________ occurs when the sample results lead to the rejection of a null hypothesis that is in fact true.

________ is an average of the two asymmetric lambda values.It does not make an assumption about which variable is dependent.

The chi-square statistic can be estimated on counts of data or on percentages.

In hypothesis testing, the observations are paired so that the two sets of observations relate to the same respondents.

A statistical technique that describes two or more variables simultaneously and results in tables that reflect the joint distribution of two or more variables that have a limited number of categories or distinct values is a ________.

In tests of associations, the null hypothesis is that there is no association between the variables (H0:......is NOT related to....).

A ________ is a test conducted by determining whether the order or sequence in which observations are obtained is random.

Nonparametric tests are used when the independent variables are nonmetric.

The ________ is a statistical test of the equality of the variances of two populations.

The Mann-Whitney U test is a statistical test for a variable measured on an ordinal scale, comparing the difference in the location of two populations based on observations from two independent samples.

The ________ is a frequency distribution that depends upon two sets of degrees of freedom, the degrees of freedom in the numerator and the degrees of freedom in the denominator.

If the probability associated with the calculated or observed value of the test statistic (TS CAL)is greater than the level of significance (α), the null hypothesis is rejected.

Which statement is not correct about the null hypothesis?

For the parametric case involving the means of paired samples, the null and alternative hypotheses are ________.

In a symmetric distribution, the values on either side of the center of the distribution are the same, and the mean mode, and median are equal.

The probability of Type II error (α)is also called the level of significance.

________ is a modified version of the phi correlation coefficient, Φ.

Define the null and alternative hypotheses. Discuss the relationship between the two hypotheses.

The null hypothesis refers to a specified value of the population parameter, not a sample statistic.

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

Filters

In tests of associations, the null hypothesis is that there is no association between the variables (H₀:......is NOT related to....).

If the probability associated with the calculated or observed value of the test statistic (TS _CAL)is greater than the level of significance (α), the null hypothesis is rejected.