Question 1

In one-way ANOVA,a large value of F results when the within-treatment variability is large compared to the between-treatment variability.

Accepted Answer

A) True 
 B)False

Question 2

If sample mean plots look essentially parallel,we can intuitively conclude that there is an interaction between the two factors.

Accepted Answer

A) True 
 B)False

Question 3

A researcher has used a one-way analysis of variance model to test whether the average starting salaries differ among recent graduates from the nursing,engineering,business,and education disciplines.She has randomly selected four graduates from each of the four areas.
If MSE = 4,and SSTO = 120,complete the following ANOVA table.Is there a significant difference in the starting salaries among the four disciplines? (H0: No difference)

Accepted Answer

\[\begin{array} { l l l l } 
\text { Sou

Question 4

Looking at four different diets,a researcher randomly assigned 20 equally overweight women into each of the four diets.What are the degrees of freedom for the error?

Accepted Answer

76
Feedback:Error df

Question 5

Suppose you are a researcher investigating the annual sales differences among five categories of businesses.The study looks at a total of 55 companies equally divided among category groups A,B,C,D,and E.
Complete the following ANOVA table and determine the value of the F statistic.
 $$\begin{array} { | l | c | c | c | c | } 
\hline \text { Source } & \text { SS } & d f & \text { MS } & \text { F } \
\hline \text { Treatment } & 583.39 & & & \
\hline \text { Error } & & & & \
\hline \text { Total } & 1555.57 & & & \
\hline
\end{array}$$ $$\begin{array} { | l | c | c | c | c | } 
\hline \text { Source } & \text { SS } & d f & \text { MS } & F \
\hline \text { Treatment } & 583.39 & 4 & 145.85 & 7.501 \
\hline \text { Error } & 972.18 & 50 & 19.4436 & \
\hline \text { Total } & 1555.57 & 54 & & \
\hline
\end{array}$$

Accepted Answer

\[\begin{array} { | l | c | c | c | c |

Question 6

Consider the one-way ANOVA table.

Accepted Answer

\[\begin{array} { l c c } 
\text { Sourc

Question 7

Consider the following partial analysis of variance table from a randomized block design with 6 blocks and 4 treatments.

Accepted Answer

\[\begin{array} { l c } 
\text { Source

Question 8

Looking at four different diets,a researcher randomly assigned 20 equally overweight women into each of the four diets.What are the degrees of freedom for the treatments?

Accepted Answer

3
Feedback:Treatment

Question 9

In a ___________________ experimental design,independent random samples of experimental units are assigned to the treatments.

Accepted Answer

A) One-way ANOVA 
B) Two-way ANOVA 
C) Randomized block 
D) Balanced complete factorial 
A) One-way ANOVA 
B) Two-way ANOVA 
C) Randomized block 
D) Balanced complete factorial

Question 10

Consider the following partial analysis of variance table from a randomized block design with 10 blocks and 6 treatments.

Accepted Answer

\[\begin{array} { l c } 
\text { Source

Question 11

Consider the following partial analysis of variance table from a randomized block design with 10 blocks and 6 treatments.

Accepted Answer

\[\begin{array} { l c } 
\text { Source

Question 12

When computing a confidence interval for the difference between two means,the width of the (1 - α)confidence interval based on Tukey's procedure will be __________ the width of the (1 - α)individual confidence interval based on the t statistic.

Accepted Answer

A) Greater than 
B) Less than 
C) The same as 
D) Sometimes greater than,sometimes less than 
A) Greater than 
B) Less than 
C) The same as 
D) Sometimes greater than,sometimes less than

Question 13

Consider the following one-way ANOVA table.

Accepted Answer

\[\begin{array} { l c c } 
\text { Sourc

Question 14

Suppose you are a researcher investigating the annual sales differences among five categories of businesses.Looking at a total of 55 companies equally divided among categories groups A,B,C,D,and E.
Determine degrees of freedom treatment,degrees of freedom error and degrees of freedom total and state the critical value of the F statistic at α = .05.

Accepted Answer

4,50,54,2.57
Feedbac

In one-way ANOVA,a large value of F results when the within-treatment variability is large compared to the between-treatment variability.

If sample mean plots look essentially parallel,we can intuitively conclude that there is an interaction between the two factors.

Looking at four different diets,a researcher randomly assigned 20 equally overweight women into each of the four diets.What are the degrees of freedom for the error?

Consider the one-way ANOVA table.

Consider the following partial analysis of variance table from a randomized block design with 6 blocks and 4 treatments.

Looking at four different diets,a researcher randomly assigned 20 equally overweight women into each of the four diets.What are the degrees of freedom for the treatments?

In a ___________________ experimental design,independent random samples of experimental units are assigned to the treatments.

Consider the following partial analysis of variance table from a randomized block design with 10 blocks and 6 treatments.

Consider the following partial analysis of variance table from a randomized block design with 10 blocks and 6 treatments.

When computing a confidence interval for the difference between two means,the width of the (1 - α)confidence interval based on Tukey's procedure will be __________ the width of the (1 - α)individual confidence interval based on the t statistic.

Consider the following one-way ANOVA table.

Statistical Inferences for Population Variances

Chi-Square Tests

Simple Linear Regression Analysis

Multiple Regression and Model Building

Time Series Forecasting and Index Numbers

Process Improvement Using Control Charts

Nonparametric Methods

Decision Theory

Filters

Exam 12: Experimental Design and Analysis of Variance

In one-way ANOVA,a large value of F results when the within-treatment variability is large compared to the between-treatment variability.

If sample mean plots look essentially parallel,we can intuitively conclude that there is an interaction between the two factors.

Looking at four different diets,a researcher randomly assigned 20 equally overweight women into each of the four diets.What are the degrees of freedom for the error?

Consider the one-way ANOVA table.

Consider the following partial analysis of variance table from a randomized block design with 6 blocks and 4 treatments.

Looking at four different diets,a researcher randomly assigned 20 equally overweight women into each of the four diets.What are the degrees of freedom for the treatments?

In a ___________________ experimental design,independent random samples of experimental units are assigned to the treatments.

Consider the following partial analysis of variance table from a randomized block design with 10 blocks and 6 treatments.

Consider the following partial analysis of variance table from a randomized block design with 10 blocks and 6 treatments.

When computing a confidence interval for the difference between two means,the width of the (1 - α)confidence interval based on Tukey's procedure will be __________ the width of the (1 - α)individual confidence interval based on the t statistic.

Consider the following one-way ANOVA table.

Statistical Inferences for Population Variances

Chi-Square Tests

Simple Linear Regression Analysis

Multiple Regression and Model Building

Time Series Forecasting and Index Numbers

Process Improvement Using Control Charts

Nonparametric Methods

Decision Theory

Filters