Question 1

Which is NOT true of an analysis of variance?

Accepted Answer

A) The population variances are all assumed to be equal. 
B) All samples must be selected randomly. 
C) All data must be ordinal level data.
D )All of the above are untrue. 
A) The population variances are all assumed to be equal. 
B) All samples must be selected randomly. 
C) All data must be ordinal level data.
D )All of the above are untrue. C

Question 2

The larger the value of the calculated F ratio:

Accepted Answer

A) the more likely an observed difference is due to chance. 
B) the larger the mean square within groups is compared to the mean square between groups. 
C) the less likely an observed difference is due to chance. 
D) the larger the sum of squares within groups is compared to the sum of squares between groups. 
A) the more likely an observed difference is due to chance. 
B) the larger the mean square within groups is compared to the mean square between groups. 
C) the less likely an observed difference is due to chance. 
D) the larger the sum of squares within groups is compared to the sum of squares between groups. C

Question 3

The question below refers to the following situation:
A valet parking attendant is interested in whether daytime temperature affects the size of tips. To study this question, she records the size of the tip given by her customers on 3 extremely hot summer days, 3 warm spring days, and 3 cold winter days. Complete an analysis of variance to test the differences between mean tips with significance (α = .05), to determine if the groups differ from each other.   
What is the research hypothesis?

Accepted Answer

A relationship does exist between daytime temperature and size of tip in the
population.

Question 4

The question below refers to the following situation:
In an analysis of variance with 4 groups, each containing 12 respondents:
Calculate the within-group degrees of freedom.

Accepted Answer

A) 60 
B) 3 
C) 44 
D) 45 
A) 60 
B) 3 
C) 44 
D) 45

Question 5

Analysis of Variance is generally used to compare three or fewer groups.

Accepted Answer

A) True 
 B)False

Question 6

In a one-way analysis of variance, the total variation is divisible into __________
Component(s).

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 7

In an analysis of variance with three groups, the research hypothesis is:

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 8

The question below refers to the following situation:
A valet parking attendant is interested in whether daytime temperature affects the size of
tips. To study this question, she records the size of the tip given by her customers on 3
extremely hot summer days, 3 warm spring days, and 3 cold winter days. Complete an
analysis of variance to test the differences between mean tips with significance (α = .05), to
determine if the groups differ from each other.   
Calculate F.

Accepted Answer

The answer of The question below refers to the following...

Question 9

Using the F ratio requires:

Accepted Answer

A) interval data. 
B) ordinal data. 
C) nominal data. 
D) all of the above. 
A) interval data. 
B) ordinal data. 
C) nominal data. 
D) all of the above.

Question 10

The formula for the total sum of squares, SStotal , is:

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 11

The question below refers to the following situation:
A social researcher is interested in studying the relationship between religious affiliation and years of education. Here is the data she is working with:   
Calculate the mean square within groups (MSwithin).

Accepted Answer

The answer of The question below refers to the following...

Question 12

The question below refers to the following situation:
A valet parking attendant is interested in whether daytime temperature affects the size of tips. To study this question, she records the size of the tip given by her customers on 3 extremely hot summer days, 3 warm spring days, and 3 cold winter days. Complete an analysis of variance to test the differences between mean tips with significance (α = .05), to determine if the groups differ from each other.   
Are the results statistically significant and, if so, at what level?

Accepted Answer

Yes, at th

Question 13

The question below refers to the following situation:
A social researcher is interested in studying the relationship between religious affiliation
and years of education. Here is the data she is working with:   
Calculate the total sum of squares.

Accepted Answer

168.775
Ch

Question 14

The question below refers to the following situation:
A valet parking attendant is interested in whether daytime temperature affects the size of tips. To study this question, she records the size of the tip given by her customers on 3 extremely hot summer days, 3 warm spring days, and 3 cold winter days. Complete an analysis of variance to test the differences between mean tips with significance (α = .05), to determine if the groups differ from each other.   
Calculate the between-group sum of squares.

Accepted Answer

The answer of The question below refers to the following...

Question 15

In Analysis of Variance if the F ratio is larger than the critical value the groups are the Same in the population.

Accepted Answer

A) True 
 B)False

Question 16

The formula for dfwithin is:

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 17

The distance or deviation of group means from one another is known as:

Accepted Answer

A) variation between groups. 
B) within-group variation. 
C) total variation. 
D) none of the above 
A) variation between groups. 
B) within-group variation. 
C) total variation. 
D) none of the above

Question 18

The question below refers to the following situation:
A valet parking attendant is interested in whether daytime temperature affects the size of tips. To study this question, she records the size of the tip given by her customers on 3 extremely hot summer days, 3 warm spring days, and 3 cold winter days. Complete an analysis of variance to test the differences between mean tips with significance (α = .05), to determine if the groups differ from each other.   
What are your conclusions about the null hypothesis?

Accepted Answer

Reject the null. It appears a

Question 19

The question below refers to the following situation:
A valet parking attendant is interested in whether daytime temperature affects the size of
tips. To study this question, she records the size of the tip given by her customers on 3
extremely hot summer days, 3 warm spring days, and 3 cold winter days. Complete an
analysis of variance to test the differences between mean tips with significance (α = .05), to
determine if the groups differ from each other.   
Calculate the within-group sum of squares.

Accepted Answer

The answer of The question below refers to the following...

Question 20

The question below refers to the following situation:
A valet parking attendant is interested in whether daytime temperature affects the size of tips. To study this question, she records the size of the tip given by her customers on 3 extremely hot summer days, 3 warm spring days, and 3 cold winter days. Complete an analysis of variance to test the differences between mean tips with significance (α = .05), to determine if the groups differ from each other.   
Calculate the total sum of squares.

Accepted Answer

The answer of The question below refers to the following...

Which is NOT true of an analysis of variance?

The larger the value of the calculated F ratio:

The question below refers to the following situation: In an analysis of variance with 4 groups, each containing 12 respondents: Calculate the within-group degrees of freedom.

Analysis of Variance is generally used to compare three or fewer groups.

In a one-way analysis of variance, the total variation is divisible into __________ Component(s).

In an analysis of variance with three groups, the research hypothesis is:

Using the F ratio requires:

The formula for the total sum of squares, SStotal , is:

The question below refers to the following situation: A social researcher is interested in studying the relationship between religious affiliation and years of education. Here is the data she is working with: Calculate the mean square within groups (MSwithin).

The question below refers to the following situation: A social researcher is interested in studying the relationship between religious affiliation and years of education. Here is the data she is working with: Calculate the total sum of squares.

In Analysis of Variance if the F ratio is larger than the critical value the groups are the Same in the population.

The formula for dfwithin is:

The distance or deviation of group means from one another is known as:

Why the Social Researcher Uses Statistics

Organizing the Data

Measures of Central Tendency

Measures of Variability

Probability and the Normal Curve

Samples and Populations

Testing Differences Between Means

Nonparametric Tests of Significance

Correlation

Regression Analysis

Nonparametric Measures of Correlation

Choosing Statistical Procedures for Research Problems

Filters

Exam 8: Analysis of Variance

Which is NOT true of an analysis of variance?

The larger the value of the calculated F ratio:

The question below refers to the following situation: In an analysis of variance with 4 groups, each containing 12 respondents: Calculate the within-group degrees of freedom.

Analysis of Variance is generally used to compare three or fewer groups.

In a one-way analysis of variance, the total variation is divisible into __________ Component(s).

In an analysis of variance with three groups, the research hypothesis is:

Using the F ratio requires:

The formula for the total sum of squares, SStotal , is:

The question below refers to the following situation: A social researcher is interested in studying the relationship between religious affiliation and years of education. Here is the data she is working with: Calculate the mean square within groups (MSwithin).

The question below refers to the following situation: A social researcher is interested in studying the relationship between religious affiliation and years of education. Here is the data she is working with: Calculate the total sum of squares.

In Analysis of Variance if the F ratio is larger than the critical value the groups are the Same in the population.

The formula for dfwithin is:

The distance or deviation of group means from one another is known as:

Why the Social Researcher Uses Statistics

Organizing the Data

Measures of Central Tendency

Measures of Variability

Probability and the Normal Curve

Samples and Populations

Testing Differences Between Means

Nonparametric Tests of Significance

Correlation

Regression Analysis

Nonparametric Measures of Correlation

Choosing Statistical Procedures for Research Problems

Filters