Question 1

The term used to denote the standardized regression coefficient is called the alpha coefficient.

Accepted Answer

A) True 
 B)False

Question 2

________ may be desirable because it is easier to compare the beta coefficients than it is to compare the raw coefficients.

Accepted Answer

A)   Covariance
B)   Standardization
C)   Correlation
D)   Regression
E)   Analysis of variance

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

The multiple correlation coefficient,R,can also be viewed as the simple correlation coefficient,r,between Y and Ŷ.

Accepted Answer

A) True 
 B)False

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

A frequency distribution that depends on two sets of degrees of freedom is called an F distribution.

Accepted Answer

A) True 
 B)False

Question 7

A procedure for deriving a mathematical relationship,in the form of an equation,between a single metric dependent variable and a single metric independent variable is called ________.

Accepted Answer

A)   univariate regression
B)   bivariate regression
C)   multivariate regression
D)   parallel regression
E)   pairwise regression

Question 8

In a short essay,describe an independent sample and list at least three hypotheses in marketing that relate to parameters from two different populations.

Accepted Answer

Independent samples are two sampl...

Question 9

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

Question 10

The ________ is computed as the ratio of two sample variances.

Accepted Answer

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

Question 11

Which of the following is NOT an example of a statement that is about a single variable against a known or given standard?

Accepted Answer

A)   The market share for the new product will exceed 15 percent.
B)   The proportion of households with an Internet connection in the United States exceeds the proportion of those in Germany.
C)   At least 65 percent of customers will like the new package design.
D)   The average monthly household expenditure on groceries exceeds $500.
E)   The new service plan will be preferred by at least 70 percent of the customers.

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

________ is a statistical procedure for analyzing associative relationships between a metric dependent variable and one or more independent variables.

Accepted Answer

A)   Regression analysis
B)   Covariance analysis
C)   Deviation analysis
D)   Correlation analysis
E)   Functional linear analysis

Question 14

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

Question 15

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

Question 16

The product moment correlation is also referred to as all of the following EXCEPT ________.

Accepted Answer

A)   simple correlation
B)   bivariate correlation
C)   correlation coefficient
D)   Pearson correlation
E)   F-statistic

Question 17

Regression analysis is a statistical procedure for analyzing associative relationships between a metric dependent variable and one or more independent variables.

Accepted Answer

A) True 
 B)False

Question 18

If the probability of F is greater than the significance level α,________ and ________ should be used.

Accepted Answer

A)   H₀ is rejected; t based on "equal variances not assumed"
B)   H₀ is not rejected; t based on "equal variances assumed"
C)   H₀ is rejected; t based on "equal variances assumed"
D)   H₀ is not rejected; t based on "equal variances not assumed"
E)   H₁ is not rejected; t based on "equal variances not assumed"

Question 19

________ involves testing the significance of the overall regression equation as well as specific partial regression coefficients.

Accepted Answer

A)   Correlation analysis
B)   Significance testing
C)   Regression analysis
D)   Factor analysis
E)   Residual analysis

Question 20

R² cannot decrease as more independent variables are added to the regression equation.

Accepted Answer

A) True 
 B)False

Exam 12: Data Analysis: Hypothesis Testing Related to Differences, correlation, and Regression

The product moment correlation is also referred to as all of the following EXCEPT ________.

Correct AnswerverifiedShow Answer

R² cannot decrease as more independent variables are added to the regression equation.

Correct AnswerverifiedShow Answer

A procedure for deriving a mathematical relationship,in the form of an equation,between a single metric dependent variable and a single metric independent variable is called ________.

Correct AnswerverifiedShow Answer

Regression analysis is a statistical procedure for analyzing associative relationships between a metric dependent variable and one or more independent variables.

Correct AnswerverifiedShow Answer

The multiple correlation coefficient,R,can also be viewed as the simple correlation coefficient,r,between Y and Ŷ.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The term used to denote the standardized regression coefficient is called the alpha coefficient.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is NOT an example of a statement that is about a single variable against a known or given standard?

Correct AnswerverifiedShow Answer

________ involves testing the significance of the overall regression equation as well as specific partial regression coefficients.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

________ may be desirable because it is easier to compare the beta coefficients than it is to compare the raw coefficients.

Correct AnswerverifiedShow Answer

________ is a statistical procedure for analyzing associative relationships between a metric dependent variable and one or more independent variables.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

If the probability of F is greater than the significance level α,________ and ________ should be used.

Correct AnswerverifiedShow Answer

In a short essay,describe an independent sample and list at least three hypotheses in marketing that relate to parameters from two different populations.

Correct AnswerverifiedIndependent samples are two sampl...View AnswerShow Answer

The ________ is computed as the ratio of two sample variances.

Correct AnswerverifiedShow Answer

A frequency distribution that depends on two sets of degrees of freedom is called an F distribution.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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If the probability of F is greater than the significance level α, and should be used.

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Independent samples are two sampl...
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