Question 1

Numbers that are mathematically different are always significantly different in a
statistical sense.

Accepted Answer

A) True 
 B)False  False

Question 2

In a study comparing adult men and adult women,if the standard deviation of the group
Of 49 men is 5.3 while the standard deviation of the 64 women is 4.8,what is the approximate standard error of the difference of the means for these data?

Accepted Answer

A) 0.55 
B) 0.67 
C) 0.97 
D) 0.78 
E) 0.86 
A) 0.55 
B) 0.67 
C) 0.97 
D) 0.78 
E) 0.86 C

Question 3

When the null hypothesis of a statistical test is rejected when,in fact,it is true,this
Represents a(n):

Accepted Answer

A) Beta error 
B) Type I error 
C) Type IV error 
D) Type III error 
E) Type II error 
A) Beta error 
B) Type I error 
C) Type IV error 
D) Type III error 
E) Type II error B

Question 4

Another name for the chi-square test is the test of the ______________ .

Accepted Answer

A) goodness of fit. 
B) two group t-test. 
C) one-group t-test. 
D) two group Z-test. 
E) one-group Z test. 
A) goodness of fit. 
B) two group t-test. 
C) one-group t-test. 
D) two group Z-test. 
E) one-group Z test.

Question 5

In a study comparing adult men and adult women,if the mean score of the men is 4.5 and
The mean score of the women is 6.5,and if the standard deviation of the group
Of 49 men is 5.3 while the standard deviation of the 64 women is 4.8,what is the approximate value of the Z-test result for these data?

Accepted Answer

A) + 2.64 
B) ─ 2.06 
C) + 4.32 
D) ─ 4.32 
E) + 2.84 
A) + 2.64 
B) ─ 2.06 
C) + 4.32 
D) ─ 4.32 
E) + 2.84

Question 6

If there are four experimental groups in an ANOVA test,how many degrees of freedom
Are thee in this study?

Accepted Answer

A) Three 
B) Four 
C) Five 
D) One 
E) Two 
A) Three 
B) Four 
C) Five 
D) One 
E) Two

Question 7

In statistical testing,if a difference between two groups is large enough to be unlikely
Because of chance,we say that this difference is:

Accepted Answer

A) statistically insignificant. 
B) a chance occurrence. 
C) statistically significant. 
D) due to sampling error. 
E) a spurious occurrence. 
A) statistically insignificant. 
B) a chance occurrence. 
C) statistically significant. 
D) due to sampling error. 
E) a spurious occurrence.

Question 8

A statistical difference is important from a manager's viewpoint only if the difference is
"sufficiently different."

Accepted Answer

A) True 
 B)False

Question 9

Suppose that a researcher wants to check to see if the average household income in
Webster Groves,Missouri,has changed from the $60,000 it was three years ago.The
Researcher takes a random sample of households in Webster Groves and finds that the average income of these households is $58,000.If the standard error of the mean for this sample is $500,what is the approximate value produced by the Z-test?

Accepted Answer

A) + 4.00 
B) + 3.65 
C) +2.00 
D) ─ 4.00 
E) ─ 3.65 
A) + 4.00 
B) + 3.65 
C) +2.00 
D) ─ 4.00 
E) ─ 3.65

Question 10

Another term for the ANOVA test is the:

Accepted Answer

A) One-group t-test. 
B) F-test. 
C) Multiple Regression test. 
D) Two-group t-test. 
E) Chi-square test. 
A) One-group t-test. 
B) F-test. 
C) Multiple Regression test. 
D) Two-group t-test. 
E) Chi-square test.

Question 11

When a researcher fails to reject the null hypothesis of a statistical test when,in fact,it is
False,this represents a(n):

Accepted Answer

A) Alpha error. 
B) Type I error. 
C) Type IV error. 
D) Type III error. 
E) Type II error. 
A) Alpha error. 
B) Type I error. 
C) Type IV error. 
D) Type III error. 
E) Type II error.

Question 12

If McDonald's sets a standard that orders from the drive-in of a restaurant should be
Presented to the customers within three minutes of the order,then the statement: "The average waiting time for drive-in orders at the Webster Groves McDonald's is three minutes" represents what type of statement?

Accepted Answer

A) A null hypothesis 
B) A research hypothesis of interest 
C) A research hypothesis 
D) An independent sample 
E) An alternative hypothesis 
A) A null hypothesis 
B) A research hypothesis of interest 
C) A research hypothesis 
D) An independent sample 
E) An alternative hypothesis

Question 13

The null hypothesis is assumed to be true until there is sufficient evidence that it is likely
to be false.

Accepted Answer

A) True 
 B)False

Question 14

The statement: "If we lower the price of this product by 5 percent,then our profit will
Increase by 3 percent" represents what type of statement?

Accepted Answer

A) A wild guess 
B) A conclusion 
C) A faint hope 
D) A hypothesis 
E) A decision rule 
A) A wild guess 
B) A conclusion 
C) A faint hope 
D) A hypothesis 
E) A decision rule

Question 15

If a researcher wanted to determine if three different prices in three different test market
Cities produced a significant difference in the number of units of a new shampoo that were sold during the test market study,what type of statistical test should this researcher use?

Accepted Answer

A) Chi-square 
B) One-group t-test 
C) Multiple regression 
D) ANOVA 
E) Two-group t-test 
A) Chi-square 
B) One-group t-test 
C) Multiple regression 
D) ANOVA 
E) Two-group t-test

Question 16

Suppose that you wanted to know if the "favorability rating" of the Mayor of St.Louis
Was still at 65 percent when this survey question was asked three months ago.If the sample size of your study is to be 200 registered voters,what is the approximate value of the standard error of the proportion for these data?

Accepted Answer

A) 0.001 
B) 0.534 
C) 0.005 
D) 0.034 
E) 0.386 
A) 0.001 
B) 0.534 
C) 0.005 
D) 0.034 
E) 0.386

Question 17

The Z-test is typically used for large samples that have greater than 30 respondents,while
the t-test is typically used for small samples that have less than 30 respondents.

Accepted Answer

A) True 
 B)False

Question 18

In statistical testing,Type I errors and Type II errors are complementary.

Accepted Answer

A) True 
 B)False

Question 19

When the measurement of a variable in one sample has no effect on the measurement of
This variable in another sample,we say that the samples are:

Accepted Answer

A) spurious. 
B) dependent. 
C) not independent. 
D) related. 
E) independent. 
A) spurious. 
B) dependent. 
C) not independent. 
D) related. 
E) independent.

Question 20

Suppose that a researcher wants to check to see if the average household income in
Webster Groves,Missouri,has changed from the $60,000 it was three years ago.The
Researcher takes a random sample of households in Webster Groves and finds that the average income of these households is $58,000.If the standard error of the mean for this sample is $500,what is the approximate conclusion produced by the Z-test if the critical Z-value is 1.96?

Accepted Answer

A) Accept the null hypothesis 
B) Reject the research hypothesis of interest 
C) Accept the hypothesis of the status quo 
D) Reject the null hypothesis and accept the research hypothesis 
E) Reject the research hypothesis 
A) Accept the null hypothesis 
B) Reject the research hypothesis of interest 
C) Accept the hypothesis of the status quo 
D) Reject the null hypothesis and accept the research hypothesis 
E) Reject the research hypothesis

Exam 16: Statistical Testing of Differences and Relationships

Numbers that are mathematically different are always significantly different in a statistical sense.

In a study comparing adult men and adult women,if the standard deviation of the group Of 49 men is 5.3 while the standard deviation of the 64 women is 4.8,what is the approximate standard error of the difference of the means for these data?

When the null hypothesis of a statistical test is rejected when,in fact,it is true,this Represents a(n):

Another name for the chi-square test is the test of the ______________ .

If there are four experimental groups in an ANOVA test,how many degrees of freedom Are thee in this study?

In statistical testing,if a difference between two groups is large enough to be unlikely Because of chance,we say that this difference is:

A statistical difference is important from a manager's viewpoint only if the difference is "sufficiently different."

Another term for the ANOVA test is the:

When a researcher fails to reject the null hypothesis of a statistical test when,in fact,it is False,this represents a(n):

If McDonald's sets a standard that orders from the drive-in of a restaurant should be Presented to the customers within three minutes of the order,then the statement: "The average waiting time for drive-in orders at the Webster Groves McDonald's is three minutes" represents what type of statement?

The null hypothesis is assumed to be true until there is sufficient evidence that it is likely to be false.

The statement: "If we lower the price of this product by 5 percent,then our profit will Increase by 3 percent" represents what type of statement?

If a researcher wanted to determine if three different prices in three different test market Cities produced a significant difference in the number of units of a new shampoo that were sold during the test market study,what type of statistical test should this researcher use?

The Z-test is typically used for large samples that have greater than 30 respondents,while the t-test is typically used for small samples that have less than 30 respondents.

In statistical testing,Type I errors and Type II errors are complementary.

When the measurement of a variable in one sample has no effect on the measurement of This variable in another sample,we say that the samples are:

The Role of Marketing Research in Management Decision Making

A: The Role of Marketing Research in Management Decision Making

The Marketing Research Industry and Research Ethics

A: The Marketing Research Industry and Research Ethics

Problem Definition,exploratory Research,and the Research Process

A: Problem Definition and the Research Process

Secondary Data and Databases

A: Secondary Data and Databases

Qualitative Research

A: Qualitative Research

Traditional Survey Research

A: Traditional Survey Research

Online Marketing Research

A: Online Marketing Research

Primary Data Collection: Observation

A: Primary Data Collection: Observation

Primary Data Collection: Experimentation and Test Markets

A: Primary Data Collection: Experimentation and Test Markets

The Concept of Measurement

A: The Concept of Measurement

Using Measurement Scales to Build Marketing Effectiveness

A: Using Measurement Scales to Build Marketing Effectiveness

Questionnaire Design

A: Questionnaire Design

Basic Sampling Issues

A: Basic Sampling Issues

Sample Size Determination

A: Sample Size Determination

Data Processing and Fundamental Data Analysis

A: Data Processing and Fundamental Data Analysis

A: Statistical Testing of Differences and Relationships

Bivariate Correlation and Regression

A: Bivariate Correlation and Regression

Multivariate Data Analysis

A: Multivariate Data Analysis

Communicating the Research Results

A: Communicating the Research Results

Managing Marketing Research

A: Managing Marketing Research

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