Question 1

The educational level and the social activity of a sample of executives follow.  What does the expected frequency for the "above average" social activity and "high school"
Education equal?
A) 9.50
B) 60.00
C) 22.50
D) 28.50

Accepted Answer

22.50

Question 2

The educational level and the social activity of a sample of executives follow.  Using the data from this Megastat printout, you determine:
A) social activity and education level are correlated.
B) social activity and education level are not related, when tested at the 0.10 level of signiﬁcance.
C) social activity and education level are related, when tested at the 0.01 level of signiﬁcance.
D) increased levels of education result in increased social activity
E) social and education level are not related, when tested at the 0.20 level of signiﬁcance.

Accepted Answer

social activity and education level are related, when tested at the 0.01 level of signiﬁcance.

Question 3

To analyze data cross-classiﬁed in a contingency table, how are the degrees of freedom found?
A) N - 1
B) Rows - Columns
C) (Rows) × (Columns)
D) (Rows - 1) × (Columns - 1)

Accepted Answer

(Rows - 1) × (Columns - 1)

Question 4

Recently, students in a marketing research class were interested in the driving behavior of students.
Speciﬁcally, the marketing students were interested if exceeding the speed limit was related to
Gender. They collected the following responses from 100 randomly selected students: 
Using the output from Megastat for the data given, what can you conclude?
A) Gender and speeding are correlated.
B) Gender and speeding are not related, based on the low p-value.
C) Gender and speeding are related, based on the low p-value.
D) The mean of gender equals the mean of speeding.
E) No conclusion is possible.

Accepted Answer

Gender and speeding are related, based on the low p-value.

Question 5

i. For a contingency table, the expected frequency for a cell is found by dividing the row total by the
Grand total.
ii. The claim that "male and female University of Toledo students prefer different parking lots on
Campus" is an example of a chi-square null hypothesis.
iii. For contingency table analysis using the chi-square test, multiplying the number of rows minus 1
By the number of columns minus 1 will give you the degrees of freedom.
A) (i), (ii), and (iii) are all correct statements.
B) (i) and (ii) are correct statements but not (iii).
C) (iii) is a correct statement but not (i) or (ii).
D) (ii) and (iii) are correct statements but not (i).
E) (i), (ii), and (iii) are all false statements.

Accepted Answer

(iii) is a correct statement but (i) or (ii).

Question 6

The educational level and the social activity of a sample of executives follow.  Using the data from this Megastat printout, you determine:
A) social activity and education level are correlated.
B) social activity and education level are not related, based on the low p-value.
C) social activity and education level are strongly related, based on the low p-value.
D) increased levels of education result in increased social activity.
E) no conclusion is possible.

Accepted Answer

social activity and education level are strongly related, based on the low p-value.

Question 7

The following table shows the adjustment to civilian life and place of residence.  Using the data from this Megastat printout, you determine:
A) residence after prison release and adjustment to civilian life are not related, when tested at the 0.10 level of signiﬁcance.
B) residence after prison release and adjustment to civilian life are not related, when tested at the 0.05 level of signiﬁcance.
C) residence after prison release and adjustment to civilian life are related, when tested at the 0.10 level of signiﬁcance.
D) residence after prison release and adjustment to civilian life are related, when tested at the 0.05 level of signiﬁcance.
E) residence after prison release and adjustment to civilian life are not related, when tested at the 0.10 and 0.05 level of signiﬁcance.

Accepted Answer

residence after prison release and adjustment to civilian life are related, when tested

Question 8

i. The claim that "male and female University of Toledo students prefer different parking lots on
Campus" is an example of a chi-square null hypothesis.
ii. For a contingency table, the expected frequency for a cell is found by dividing the row total by the
Grand total.
iii. For contingency table analysis using the chi-square test, multiplying the number of rows minus 1
By the number of columns minus 1 will give you the degrees of freedom.
A) (i), (ii), and (iii) are all correct statements.
B) (i) and (ii) are false statements only (iii) is correct.
C) (ii) is a correct statement but not (i) or (iii).
D) (ii) and (iii) are correct statements but not (i).
E) (i), (ii), and (iii) are all false statements.

Accepted Answer

(i) and (ii) are false statements only (iii) is correct.

Question 9

i. The claim that "male and female University of Toledo students prefer different parking lots on
Campus" is an example of a chi-square null hypothesis.
ii. For contingency table analysis using the chi-square test, multiplying the number of rows minus 1
By the number of columns minus 1 will give you the degrees of freedom.
iii. For a contingency table, the expected frequency for a cell is found by dividing the row total by
The grand total.
A) (i), (ii), and (iii) are all correct statements.
B) (ii) is a correct statement but not (i) or (iii).
C) (iii) is a correct statement but not (i) or (ii).
D) (ii) and (iii) are correct statements but not (i).
E) (i), (ii), and (iii) are all false statements.

Accepted Answer

(ii) is a correct statement but (i) or (iii).

Question 10

Which of the following can be used to test if two nominal variables or characteristics are related?
A) A contingency table
B) A chi-square table
C) An ANOVA table
D) A scatter diagram

Accepted Answer

A contingency table

Question 11

A school is trying to determine if there is a relationship between gender and which of its 3 programs
That students enrol. It was observed that 20 females enrolled in accounting, 15 in ﬁnance and 25 in
Marketing. For males, 10 enrolled in accounting, 20 enrolled in ﬁnance and 15 enrolled in marketing.
Can we conclude that there is a relationship between gender and program? Use the 0.05
Signiﬁcance level.
A) There is no evidence of a relationship between gender and program of study.
B) There is evidence of a relationship between gender and program of study.
C) Not enough information is given to reach a conclusion.

Accepted Answer

There is no evidence of a relationship between gender and program of study.

Question 12

The following table classiﬁes an individual in two ways-by gender and by educational choice.  What is this two-way classiﬁcation called?
A) Goodness-of-ﬁt test
B) Frequency table
C) No-load table
D) Contingency table

Accepted Answer

Contingency table

Question 13

The following table classiﬁes an individual in two ways-by gender and by educational choice.  Using the data from this Megastat printout, you determine:
A) gender and educational choices are not related, when tested at the 0.10 level of signiﬁcance.
B) gender and educational choices are not related, when tested at the 0.05 level of signiﬁcance.
C) gender and educational choices are related, when tested at the 0.10 level of signiﬁcance.
D) gender and educational choices are related, when tested at the 0.05 level of signiﬁcance.
E) gender and educational choices are not related, when tested at the 0.05 level of signiﬁcance, but are related when tested at the 0.10 level of signiﬁcance.

Accepted Answer

gender and educational choices are related, when tested at the 0.05 level of

Question 14

A survey of the opinions of property owners about a street widening project was taken to determine
Whether the resulting opinion was related to the distance of front footage. A randomly selected
Sample of 100 property owners was contacted and the results are shown below. 
What kind of table is this classiﬁcation? Determine the null and alternate hypotheses.
A) Contingency; Ho: Opinions and property front-footage are independent; H1: Opinions and property front-footage are related.
B) Goodness-of-ﬁt; Ho: Opinions and property front-footage are independent; H1: Opinions and property front-footage are related.
C) Goodness-of-ﬁt; Ho: Opinions and property front-footage are the same; H1: Opinions and property front-footage are different.
D) Contingency; Ho: Opinions and property front-footage are related; H1: Opinions and property front-footage are independent.

Accepted Answer

Contingency; Ho: Opinions and property front-footage are independent; H1: Opinions and

Question 15

A school is trying to determine if there is a relationship between gender and which of its 3 programs
That students enroll in. It was observed that 20 females enrolled in accounting, 15 in ﬁnance and 25
In marketing. For males, 10 enrolled in accounting, 20 enrolled in ﬁnance and 15 enrolled in
Marketing. What is the chi square value?
A) 4.497
B) 5
C) 3.25
D) 4.25

Accepted Answer

4.497

Question 16

For a chi-square test involving a contingency table, suppose the null hypothesis is rejected. We
Conclude that the two variables are:
A) linear.
B) curvilinear.
C) not related.
D) related.

Accepted Answer

related.

Question 17

How many degrees of freedom do we use for the chi square goodness of ﬁt test?
A) k, where k represents the number of classes/categories.
B) k - 1, where k represents the number of classes/categories.
C) k - 1, where k represents the number of data values.
D) k, where k represents the number of data values.

Accepted Answer

k - 1, where k represents the number of classes/categories.

Question 18

The educational level and the social activity of a sample of executives follow.  Using the data from this Megastat printout, you determine:
A) social activity and education level are correlated.
B) social activity and education level are not related, when tested at the 0.10 level of signiﬁcance.
C) social activity and education level are strongly related, based on the low p-value.
D) increased levels of education result in increased social activity.
E) social and education level are not related, when tested at the 0.20 level of signiﬁcance.

Accepted Answer

social activity and education level are related, when tested at the 0.10 level of

Question 19

A sample of 100 production workers is obtained. The workers are classiﬁed by gender (male,
Female) and by age (under 20, 20 - 29, 30 - 39 and 40 or over). How many degrees of freedom are
There?
A) 0
B) 3
C) 6
D) 5

Accepted Answer

3

Question 20

The following table shows the adjustment to civilian life and place of residence.  What is the critical value for this contingency table at the 0.01 level of signiﬁcance?
A) 9.488
B) 2.070
C) 11.345
D) 13.277

Accepted Answer

11.345

Quiz 14: Multiple Regression and Correlation Analysis

The educational level and the social activity of a sample of executives follow. What does the expected frequency for the "above average" social activity and "high school" Education equal?

The educational level and the social activity of a sample of executives follow. Using the data from this Megastat printout, you determine:

To analyze data cross-classiﬁed in a contingency table, how are the degrees of freedom found?

The educational level and the social activity of a sample of executives follow. Using the data from this Megastat printout, you determine:

The following table shows the adjustment to civilian life and place of residence. Using the data from this Megastat printout, you determine:

Which of the following can be used to test if two nominal variables or characteristics are related?

The following table classiﬁes an individual in two ways-by gender and by educational choice. What is this two-way classiﬁcation called?

The following table classiﬁes an individual in two ways-by gender and by educational choice. Using the data from this Megastat printout, you determine:

For a chi-square test involving a contingency table, suppose the null hypothesis is rejected. We Conclude that the two variables are:

How many degrees of freedom do we use for the chi square goodness of ﬁt test?

The educational level and the social activity of a sample of executives follow. Using the data from this Megastat printout, you determine:

A sample of 100 production workers is obtained. The workers are classiﬁed by gender (male, Female) and by age (under 20, 20 - 29, 30 - 39 and 40 or over) . How many degrees of freedom are There?

The following table shows the adjustment to civilian life and place of residence. What is the critical value for this contingency table at the 0.01 level of signiﬁcance?