Question 1

The ______________ test to detect where the difference is among the means can be used even if the sample sizes are not equal.

Accepted Answer

Scheffé

Question 2

Complete the formula for the Tukey test: q =

Accepted Answer

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

Question 3

Use the following to answer questions :
A vending machine company wants to check three of its machines to determine if they are properly dispensing 12 ounces of coffee. Their data is given below.  
-Compute the test value for the coffee machines.

Accepted Answer

A)  2.25 
B)  5.06 
C)  6.62 
D)  4.86 
A)  2.25 
B)  5.06 
C)  6.62 
D)  4.86 B

Question 4

A Two-Way ANOVA Summary Table is shown below.   The critical value for the F test using   = 0.05, d.f.N. = 2, and d.f.D = 54 is 3.17. Then

Accepted Answer

A)  The null hypothesis concerning Factor A should be rejected 
B)  The null hypothesis concerning Factor B should be rejected 
C)  The null hypothesis concerning Factor A and the Interaction (Ax
B)  effect should be rejected 
D)  All of the null hypotheses should be accepted 
A)  The null hypothesis concerning Factor A should be rejected 
B)  The null hypothesis concerning Factor B should be rejected 
C)  The null hypothesis concerning Factor A and the Interaction (Ax
B)  effect should be rejected 
D)  All of the null hypotheses should be accepted

Question 5

A researcher is performing a two-way ANOVA using two factors. The first factor has 4 levels and the second factor has 5 levels. In the ANOVA Summary Table, the degrees of freedom for the first and second factors will be

Accepted Answer

A)  4 d.f. for the first factor and 5 d.f. for the second factor 
B)  3 d.f. for the first factor and 4 d.f. for the second factor 
C)  5 d.f. for the first factor and 6 d.f. for the second factor 
D)  20 d.f. for the first factor and 20 d.f. for the second factor 
A)  4 d.f. for the first factor and 5 d.f. for the second factor 
B)  3 d.f. for the first factor and 4 d.f. for the second factor 
C)  5 d.f. for the first factor and 6 d.f. for the second factor 
D)  20 d.f. for the first factor and 20 d.f. for the second factor

Question 6

If there are 4 means to be compared, then how many possible different comparisons (such as   compared to   ) are there altogether?

Accepted Answer

A)  4 
B)  6 
C)  12 
D)  16 
A)  4 
B)  6 
C)  12 
D)  16

Question 7

Use the following to answer question:
The head of the English department wants to determine if the average number of students taking an English course differs depending upon the time of day that the course is being offered.  
-Is there a significant difference between the mean attendance for the classes given for   ?

Accepted Answer

A)  Yes, there is a significant difference between the means. 
B)  No, there is no significant difference between the means. 
C)  The F-test cannot be used to answer whether or not there is a significant difference between the means. 
A)  Yes, there is a significant difference between the means. 
B)  No, there is no significant difference between the means. 
C)  The F-test cannot be used to answer whether or not there is a significant difference between the means.

Question 8

The figure below is an example of what type of interaction?

Accepted Answer

A)  disordinal interaction 
B)  ordinal interaction 
C)  polar interaction 
D)  cardinal interaction 
A)  disordinal interaction 
B)  ordinal interaction 
C)  polar interaction 
D)  cardinal interaction

Question 9

In the Tukey test, if   = 8 for a group size   = 7,   = 13 for a group size   = 7, and the within-group variance   = 21, then the q test value for comparing group 2 to group 4 is

Accepted Answer

A)  -0.01 
B)  -0.24 
C)  -1.09 
D)  -2.89 
A)  -0.01 
B)  -0.24 
C)  -1.09 
D)  -2.89

Question 10

A researcher is comparing 6 groups to test if they have the same means. There are 53 data values altogether. The degrees of freedom for the Between (dfB) and the degrees of freedom for the Within (dfW) are

Accepted Answer

A)  dfB = 47, dfW = 52 
B)  dfB = 5, dfW = 47 
C)  dfB = 5, dfW = 52 
D)  dfB = 6, dfW = 52 
A)  dfB = 47, dfW = 52 
B)  dfB = 5, dfW = 47 
C)  dfB = 5, dfW = 52 
D)  dfB = 6, dfW = 52

Question 11

The ________________ variance is made by computing the variance using all the data and is not affected by differences in the means.

Accepted Answer

The answer of The ________________ variance is made by computing...

Question 12

In 2-way ANOVA, effects of the independent variables are also referred to as the ________________.

Accepted Answer

The answer of In 2-way ANOVA, effects of the independent...

Question 13

Which of the following assumptions does not apply to the two-way ANOVA?

Accepted Answer

A)  The populations from which the samples were obtained must be normally or approximately normally distributed. 
B)  The samples must be independent of each other. 
C)  The means of the populations must be equal. 
D)  The groups must be equal in sample size. 
A)  The populations from which the samples were obtained must be normally or approximately normally distributed. 
B)  The samples must be independent of each other. 
C)  The means of the populations must be equal. 
D)  The groups must be equal in sample size.

Question 14

The figure below is an example of what type of interaction?

Accepted Answer

A)  disordinal interaction 
B)  ordinal interaction 
C)  There is no interaction because the lines do not cross. 
D)  cardinal interaction 
A)  disordinal interaction 
B)  ordinal interaction 
C)  There is no interaction because the lines do not cross. 
D)  cardinal interaction

Question 15

In a two-way ANOVA design, variable A has four levels and variable B has two levels. There are eight data values in each cell. What is the d.f.N. for factor B?

Accepted Answer

The answer of In a two-way ANOVA design, variable A...

Question 16

ANOVA is an abbreviation for the following term:

Accepted Answer

A)  analysis of variance 
B)  variance 
C)  Scheffé test 
D)  Tukey test 
A)  analysis of variance 
B)  variance 
C)  Scheffé test 
D)  Tukey test

Question 17

A portion of an ANOVA summary table is shown below. Calculate the F test value.

Accepted Answer

A)  0.16 
B)  0.48 
C)  6.20 
D)  27.24 
A)  0.16 
B)  0.48 
C)  6.20 
D)  27.24

Question 18

A portion of an ANOVA summary table is shown below.   The critical value for this problem should have dfN (degrees of freedom in the numerator) and dfD (degrees of freedom in the denominator) of

Accepted Answer

A)  dfN = 3, dfD = 26 
B)  dfN = 26, dfD = 3 
C)  dfN = 19, dfD = 34 
D)  dfN = 34, dfD = 19 
A)  dfN = 3, dfD = 26 
B)  dfN = 26, dfD = 3 
C)  dfN = 19, dfD = 34 
D)  dfN = 34, dfD = 19

Question 19

Use the following to answer questions :
A vending machine company wants to check three of its machines to determine if they are properly dispensing 12 ounces of coffee. Their data is given below.  
-Is there a significant difference between the vending machines A, B, and C? Use   .

Accepted Answer

A)  Yes, there is a significant difference between the means. 
B)  No, there is no significant difference between the means. 
C)  The F-test cannot be used to answer whether or not there is a significant difference between the means. 
A)  Yes, there is a significant difference between the means. 
B)  No, there is no significant difference between the means. 
C)  The F-test cannot be used to answer whether or not there is a significant difference between the means.

Question 20

When finding the degrees of freedom for the F-distribution, d. f. N is equal to one less than the number of groups.

Accepted Answer

A) True 
 B)False

The ______________ test to detect where the difference is among the means can be used even if the sample sizes are not equal.

Complete the formula for the Tukey test: q =

Use the following to answer questions : A vending machine company wants to check three of its machines to determine if they are properly dispensing 12 ounces of coffee. Their data is given below. -Compute the test value for the coffee machines.

A Two-Way ANOVA Summary Table is shown below. The critical value for the F test using = 0.05, d.f.N. = 2, and d.f.D = 54 is 3.17. Then

A researcher is performing a two-way ANOVA using two factors. The first factor has 4 levels and the second factor has 5 levels. In the ANOVA Summary Table, the degrees of freedom for the first and second factors will be

If there are 4 means to be compared, then how many possible different comparisons (such as compared to ) are there altogether?

The figure below is an example of what type of interaction?

In the Tukey test, if = 8 for a group size = 7, = 13 for a group size = 7, and the within-group variance = 21, then the q test value for comparing group 2 to group 4 is

A researcher is comparing 6 groups to test if they have the same means. There are 53 data values altogether. The degrees of freedom for the Between (dfB) and the degrees of freedom for the Within (dfW) are

The ________________ variance is made by computing the variance using all the data and is not affected by differences in the means.

In 2-way ANOVA, effects of the independent variables are also referred to as the ________________.

Which of the following assumptions does not apply to the two-way ANOVA?

The figure below is an example of what type of interaction?

In a two-way ANOVA design, variable A has four levels and variable B has two levels. There are eight data values in each cell. What is the d.f.N. for factor B?

ANOVA is an abbreviation for the following term:

A portion of an ANOVA summary table is shown below. Calculate the F test value.

A portion of an ANOVA summary table is shown below. The critical value for this problem should have dfN (degrees of freedom in the numerator) and dfD (degrees of freedom in the denominator) of

Use the following to answer questions : A vending machine company wants to check three of its machines to determine if they are properly dispensing 12 ounces of coffee. Their data is given below. -Is there a significant difference between the vending machines A, B, and C? Use .

When finding the degrees of freedom for the F-distribution, d. f. N is equal to one less than the number of groups.

The Nature of Probability and Statistics

Frequency Distributions and Graphs

Data Description

Probability and Counting Rules

Discrete Probability Distributions

The Normal Distribution

Confidence Intervals and Sample Size

Hypothesis Testing

Testing the Difference Between Two Means, Two Variances, and Two Proportions

Correlation and Regression

Other Chi-Square Tests

Nonparametric Statistics

Sampling and Simulation

Filters

Exam 12: Analysis of Variance

The ______________ test to detect where the difference is among the means can be used even if the sample sizes are not equal.

Complete the formula for the Tukey test: q =

Use the following to answer questions : A vending machine company wants to check three of its machines to determine if they are properly dispensing 12 ounces of coffee. Their data is given below. -Compute the test value for the coffee machines.

A Two-Way ANOVA Summary Table is shown below. The critical value for the F test using = 0.05, d.f.N. = 2, and d.f.D = 54 is 3.17. Then

A researcher is performing a two-way ANOVA using two factors. The first factor has 4 levels and the second factor has 5 levels. In the ANOVA Summary Table, the degrees of freedom for the first and second factors will be

If there are 4 means to be compared, then how many possible different comparisons (such as compared to ) are there altogether?

The figure below is an example of what type of interaction?

In the Tukey test, if = 8 for a group size = 7, = 13 for a group size = 7, and the within-group variance = 21, then the q test value for comparing group 2 to group 4 is

A researcher is comparing 6 groups to test if they have the same means. There are 53 data values altogether. The degrees of freedom for the Between (dfB) and the degrees of freedom for the Within (dfW) are

The ________________ variance is made by computing the variance using all the data and is not affected by differences in the means.

In 2-way ANOVA, effects of the independent variables are also referred to as the ________________.

Which of the following assumptions does not apply to the two-way ANOVA?

The figure below is an example of what type of interaction?

In a two-way ANOVA design, variable A has four levels and variable B has two levels. There are eight data values in each cell. What is the d.f.N. for factor B?

ANOVA is an abbreviation for the following term:

A portion of an ANOVA summary table is shown below. Calculate the F test value.

A portion of an ANOVA summary table is shown below. The critical value for this problem should have dfN (degrees of freedom in the numerator) and dfD (degrees of freedom in the denominator) of

Use the following to answer questions : A vending machine company wants to check three of its machines to determine if they are properly dispensing 12 ounces of coffee. Their data is given below. -Is there a significant difference between the vending machines A, B, and C? Use .

When finding the degrees of freedom for the F-distribution, d. f. N is equal to one less than the number of groups.

The Nature of Probability and Statistics

Frequency Distributions and Graphs

Data Description

Probability and Counting Rules

Discrete Probability Distributions

The Normal Distribution

Confidence Intervals and Sample Size

Hypothesis Testing

Testing the Difference Between Two Means, Two Variances, and Two Proportions

Correlation and Regression

Other Chi-Square Tests

Nonparametric Statistics

Sampling and Simulation

Filters