Question 1

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-statisticF) A) and B)
G) None of the above

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

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.F) B) and C)
G) A) and E)

Question 4

The product moment correlation is also referred to as regression correlation.

Accepted Answer

A) True 
 B)False

Question 5

According to the text, the ________ can be conducted on the means of one sample or two samples of observations.

Accepted Answer

A)  F-test
B)  p-test
C)  t-test
D)  z-test
E)  k-means testF) A) and B)
G) All of the above

Question 6

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

Accepted Answer

A)  Non-parametric tests
B)  Parametric tests
C)  Parallel tests
D)  Regression tests
E)  Interval testsF) A) and B)
G) None of the above

Question 7

Parametric tests provide inferences for making statements about the means of parent populations.

Accepted Answer

A) True 
 B)False

Question 8

________ 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 analysisF) A) and E)
G) B) and C)

Question 9

________ tests provide inferences for making statements about the means of parent populations.

Accepted Answer

A)  Non-parametric tests
B)  Parametric tests
C)  Parallel tests
D)  Regression tests
E)  Parent population testsF) A) and B)
G) A) and C)

Question 10

A 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 11

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

Accepted Answer

A) True 
 B)False

Question 12

The ________ coefficient is the slope obtained by the regression of y on x when the data are standardized.

Accepted Answer

A)  random regression
B)  standardized regression
C)  bipolar regression
D)  alternate regression
E)  alphaF) A) and B)
G) All of the above

Question 13

In multiple regression, if the overall null hypothesis is rejected, we know which specific coefficients (βis)are nonzero.

Accepted Answer

A) True 
 B)False

Question 14

In many marketing research applications, the observations for two groups are not selected from independent samples.Rather, the observations relate to ________ in that the two sets of observations relate to the same respondents.

Accepted Answer

A)  distributed samples
B)  independent samples
C)  paired samples
D)  random samples
E)  divergent samplesF) A) and B)
G) B) and E)

Question 15

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

Accepted Answer

A)  independent; random
B)  random; exclusive
C)  exclusive; dependent
D)  independent; paired
E)  set-up; breakdownF) B) and C)
G) B) and D)

Question 16

The F statistic is computed as the ratio of two sample means.

Accepted Answer

A) True 
 B)False

Question 17

A statistic summarizing the strength of association between two metric variables is called the ________.

Accepted Answer

A)  product moment correlation
B)  covariance correlation
C)  inverse correlation
D)  bivariate correlation
E)  F-statisticF) None of the above
G) A) and C)

Question 18

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 distributionF) B) and D)
G) A) and B)

Question 19

Two samples that are not experimentally related are called ________.

Accepted Answer

A)  independent samples
B)  dependent samples
C)  parallel samples
D)  exclusive samples
E)  non-experimental samplesF) A) and E)
G) A) and B)

Question 20

Multiple regression is a statistical technique that simultaneously develops a mathematical relationship between two or more independent variables and an interval-scaled dependent variable.

Accepted Answer

A) True 
 B)False

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

In many marketing research applications, the observations for two groups are not selected from independent samples.Rather, the observations relate to ________ in that the two sets of observations relate to the same respondents.

Correct AnswerverifiedShow Answer

Multiple regression is a statistical technique that simultaneously develops a mathematical relationship between two or more independent variables and an interval-scaled dependent variable.

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The F statistic is computed as the ratio of two sample means.

Correct AnswerverifiedShow Answer

________ tests provide inferences for making statements about the means of parent populations.

Correct AnswerverifiedShow Answer

A 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.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The product moment correlation is also referred to as regression correlation.

Correct AnswerverifiedShow Answer

In multiple regression, if the overall null hypothesis is rejected, we know which specific coefficients (βis)are nonzero.

Correct AnswerverifiedShow Answer

Parametric tests provide inferences for making statements about the means of parent populations.

Correct AnswerverifiedShow Answer

A statistic summarizing the strength of association between two metric variables is called the ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

According to the text, the ________ can be conducted on the means of one sample or two samples of observations.

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

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

Correct AnswerverifiedShow Answer

Two samples that are not experimentally related are called ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The ________ coefficient is the slope obtained by the regression of y on x when the data are standardized.

Correct AnswerverifiedShow Answer

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

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