Question 1

In an experimental design,treatment variables are response variables.

Accepted Answer

A) True 
 B)False

Question 2

Cindy Ho,VP of Finance at Discrete Components,Inc.(DCI),theorizes that the discount level offered to credit customers affects the average collection period on credit sales.Accordingly,she has designed an experiment to test her theory using four sales discount rates (0%,2%,4%,and 6%)by randomly assigning five customers to each sales discount rate.Cindy's null hypothesis is ___.

Accepted Answer

A) $\mu$ 1 =$\mu$ 2 = $\mu$ 3= $\mu$ 4= $\mu$ 5 
B) $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3$\neq$ $\mu$ 4$\neq$ $\mu$ 5 
C) $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3$\neq$ $\mu$ 4 
D) $\mu$ 1 =$\mu$ 2 = $\mu$ 3= $\mu$ 4 
E) $\mu$ 1 $\neq$$\mu$ 2 = $\mu$ 3= $\mu$ 4 
A) $\mu$ 1 =$\mu$ 2 = $\mu$ 3= $\mu$ 4= $\mu$ 5 
B) $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3$\neq$ $\mu$ 4$\neq$ $\mu$ 5 
C) $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3$\neq$ $\mu$ 4 
D) $\mu$ 1 =$\mu$ 2 = $\mu$ 3= $\mu$ 4 
E) $\mu$ 1 $\neq$$\mu$ 2 = $\mu$ 3= $\mu$ 4

Question 3

BigShots,Inc.is a specialty e-tailer that operates 87 catalogue websites on the Internet.Kevin Conn,Sales Director,feels that the style (colour scheme,graphics,fonts,etc. )of a website may affect its sales.He chooses three levels of design style (neon,old world and sophisticated)and randomly assigns six catalogue websites to each design style.Analysis of Kevin's data yielded the following ANOVA table:   
Using $\alpha$ = 0.05,the appropriate decision is ___.

Accepted Answer

A) inconclusive 
B) reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3 
C) reject the null hypothesis $\mu$ 1 =$\mu$ 2 = $\mu$ 3 
D) do not reject the null hypothesis $\mu$ 1 $\ge$ $\mu$ 2 $\ge$ $\mu$ 3 
E) do not reject the null hypothesis $\mu$ 1 $\le$ $\mu$ 2 $\le$ $\mu$ 3 
A) inconclusive 
B) reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3 
C) reject the null hypothesis $\mu$ 1 =$\mu$ 2 = $\mu$ 3 
D) do not reject the null hypothesis $\mu$ 1 $\ge$ $\mu$ 2 $\ge$ $\mu$ 3 
E) do not reject the null hypothesis $\mu$ 1 $\le$ $\mu$ 2 $\le$ $\mu$ 3

Question 4

In experimental design,classification variables are independent variables.

Accepted Answer

A) True 
 B)False

Question 5

Cindy Ho,VP of Finance at Discrete Components,Inc.(DCI),theorizes that the discount level offered to credit customers affects the average collection period on credit sales.Accordingly,she has designed an experiment to test her theory using four sales discount rates (0%,2%,4%,and 6%)by randomly assigning five customers to each sales discount rate.An analysis of Cindy's data produced the following ANOVA table:   
Using $\alpha$ = 0.01,the appropriate decision is ___.

Accepted Answer

A) reject the null hypothesis $\mu$ 1 =$\mu$ 2 = $\mu$ 3= $\mu$ 4 
B) reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3$\neq$ $\mu$ 4 
C) do not reject the null hypothesis $\mu$ 1 =$\mu$ 2 = $\mu$ 3= $\mu$ 4= $\mu$ 5 
D) do not reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3$\neq$ $\mu$ 4$\neq$ $\mu$5 
E) do nothing 
A) reject the null hypothesis $\mu$ 1 =$\mu$ 2 = $\mu$ 3= $\mu$ 4 
B) reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3$\neq$ $\mu$ 4 
C) do not reject the null hypothesis $\mu$ 1 =$\mu$ 2 = $\mu$ 3= $\mu$ 4= $\mu$ 5 
D) do not reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3$\neq$ $\mu$ 4$\neq$ $\mu$5 
E) do nothing

Question 6

The following graph indicates a ___.

Accepted Answer

A) 2 $\times$ 3 factorial design with interaction 
B) 2 $\times$4 factorial design with interaction 
C) 4 $\times$ 2 factorial design with interaction 
D) 4 $\times$ 2 factorial design with no interaction 
E) completely randomized design 
A) 2 $\times$ 3 factorial design with interaction 
B) 2 $\times$4 factorial design with interaction 
C) 4 $\times$ 2 factorial design with interaction 
D) 4 $\times$ 2 factorial design with no interaction 
E) completely randomized design

Question 7

BigShots,Inc.is a specialty e-tailer that operates 87 catalogue websites on the Internet.Kevin Conn,Sales Director,feels that the style (colour scheme,graphics,fonts,etc. )of a website may affect its sales.He chooses three levels of design style (neon,old world and sophisticated)and randomly assigns six catalogue websites to each design style.Kevin's null hypothesis is ___.

Accepted Answer

A) $\mu$ 1 $\ge$ $\mu$ 2 $\ge$ $\mu$ 
B) $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3 
C) $\mu$ 1 =$\mu$ 2 = $\mu$ 3/ 
D) $\mu$ 1 $\le$ $\mu$ 2 $\le$ $\mu$ 3 
E) $\mu$ 1 $\le$$\mu$ 2 $\ge$ $\mu$ 3 
A) $\mu$ 1 $\ge$ $\mu$ 2 $\ge$ $\mu$ 
B) $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3 
C) $\mu$ 1 =$\mu$ 2 = $\mu$ 3/ 
D) $\mu$ 1 $\le$ $\mu$ 2 $\le$ $\mu$ 3 
E) $\mu$ 1 $\le$$\mu$ 2 $\ge$ $\mu$ 3

Question 8

While reviewing staffing plans for a new pilot plant,Colin Chenaux,VP of Operations at Clovis Chemicals,Inc. ,designed an experiment to test the effects of "supervisor's style" and "training method" on the productivity of operators.The treatment levels were: (1)authoritarian,and participatory for supervisor's style,and (2)technical manuals,training films,and multimedia for training method.Three qualified applicants were randomly selected and assigned to each of the six cells.Analysis of Colin's data produced the following ANOVA table:   
Using $\alpha$ = .05,the appropriate decision for "training method" effects is ___.

Accepted Answer

A) reject the null hypothesis $\mu$ 1 =$\mu$ 2 =$\mu$ 3 
B) reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 $\neq$$\mu$ 3 
C) do not reject the null hypothesis $\mu$ 1 =$\mu$ 2 
D) do not reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 
E) do nothing 
A) reject the null hypothesis $\mu$ 1 =$\mu$ 2 =$\mu$ 3 
B) reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 $\neq$$\mu$ 3 
C) do not reject the null hypothesis $\mu$ 1 =$\mu$ 2 
D) do not reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 
E) do nothing

Question 9

In experimental design,a characteristic of the subjects that was present prior to the experiment and is not the result of the experimenter's manipulations or control is called a classification variable.

Accepted Answer

A) True 
 B)False

Question 10

Cindy Ho,VP of Finance at Discrete Components,Inc.(DCI),theorizes that the discount level offered to credit customers affects the average collection period on credit sales.Accordingly,she has designed an experiment to test her theory using four sales discount rates (0%,2%,4%,and 6%)by randomly assigning five customers to each sales discount rate.In Cindy's experiment,"sales discount rate" is ___.

Accepted Answer

A) the dependent variable 
B) a treatment variable 
C) a blocking variable 
D) a concomitant variable 
E) a constant 
A) the dependent variable 
B) a treatment variable 
C) a blocking variable 
D) a concomitant variable 
E) a constant

Question 11

While reviewing staffing plans for a new pilot plant,Colin Chenaux,VP of Operations at Clovis Chemicals,Inc. ,designed an experiment to test the effects of "supervisor's style" and "training method" on the productivity of operators.The treatment levels were: (1)authoritarian,and participatory for supervisor's style,and (2)technical manuals,training films,and multimedia for training method.Three qualified applicants were randomly selected and assigned to each of the six cells.In Colin's experiment,"training method" is ___.

Accepted Answer

A) a treatment variable 
B) a surrogate variable 
C) the dependent variable 
D) a blocking variable 
E) a constant 
A) a treatment variable 
B) a surrogate variable 
C) the dependent variable 
D) a blocking variable 
E) a constant

Question 12

BigShots,Inc.is a specialty e-tailer that operates 87 catalogue websites on the Internet.Kevin Conn,Sales Director,feels that the style (colour scheme,graphics,fonts,etc. )of a website may affect its sales.He chooses three levels of design style (neon,old world and sophisticated)and randomly assigns six catalogue websites to each design style.Kevin's experimental design is a ___.

Accepted Answer

A) factorial design 
B) random block design 
C) completely randomized design 
D) normalized block design 
E) partially randomized design 
A) factorial design 
B) random block design 
C) completely randomized design 
D) normalized block design 
E) partially randomized design

Question 13

Pate's Pharmacy,Inc.operates a regional chain of 120 pharmacies.Each pharmacy's floor plan includes a greeting card department which is relatively isolated.Sandra Royo,Marketing Manager,feels that the level of lighting in the greeting card department may affect sales in that department.She chooses three levels of lighting (soft,medium,and bright)and randomly assigns six pharmacies to each lighting level.Analysis of Sandra's data yielded the following ANOVA table:   
Using $\alpha$ = 0.05,the appropriate decision is ___.

Accepted Answer

A) do not reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3 
B) do not reject the null hypothesis $\mu$ 1 =$\mu$ 2 = $\mu$ 3 
C) reject the null hypothesis $\mu$ 1 $\ge$$\mu$ 2 $\ge$$\mu$ 3 
D) reject the null hypothesis $\mu$ 1 $\le$ $\mu$ 2 $\le$ $\mu$ 3 
E) inclusive 
A) do not reject the null hypothesis $\mu$ 1 $\neq$$\mu$ 2 $\neq$ $\mu$ 3 
B) do not reject the null hypothesis $\mu$ 1 =$\mu$ 2 = $\mu$ 3 
C) reject the null hypothesis $\mu$ 1 $\ge$$\mu$ 2 $\ge$$\mu$ 3 
D) reject the null hypothesis $\mu$ 1 $\le$ $\mu$ 2 $\le$ $\mu$ 3 
E) inclusive

Question 14

Test a completely randomized design using a one-way analysis of variance.

Accepted Answer

The completely randomized design is the

Question 15

Cindy Ho,VP of Finance at Discrete Components,Inc.(DCI),theorizes that the discount level offered to credit customers affects the average collection period on credit sales.Accordingly,she has designed an experiment to test her theory using four sales discount rates (0%,2%,4%,and 6%).First,she classified DCI's credit customers into three categories by total assets (small,medium,and large).Then,she randomly assigned four customers from each category to a sales discount rate.In Cindy's experiment "average collection period" is ___.

Accepted Answer

A) a concomitant variable 
B) the dependent variable 
C) a treatment variable 
D) a blocking variable 
E) a constant 
A) a concomitant variable 
B) the dependent variable 
C) a treatment variable 
D) a blocking variable 
E) a constant

Question 16

Data from a randomized block design are shown in the following table:   
With $\alpha$= 0.05,the observed F value for the blocking effects null hypothesis is ___.

Accepted Answer

A) 5.31 
B) 0.09 
C) 15.67 
D) 2.92 
E) 1.89 
A) 5.31 
B) 0.09 
C) 15.67 
D) 2.92 
E) 1.89

Question 17

Describe an experimental design and its elements,including independent variables-both treatment and classification-and dependent variables.

Accepted Answer

Sound business research requires that th

Question 18

While reviewing staffing plans for a new pilot plant,Colin Chenaux,VP of Operations at Clovis Chemicals,Inc. ,designed an experiment to test the effects of "supervisor's style" and "training method" on the productivity of operators.The treatment levels were: (1)authoritarian,and participatory for supervisor's style,and (2)technical manuals,training films,and multimedia for training method.Three qualified applicants were randomly selected and assigned to each of the six cells.In Colin's experiment,"operator productivity" is ___.

Accepted Answer

A) a concomitant variable 
B) a treatment variable 
C) the dependent variable 
D) a blocking variable 
E) a constant 
A) a concomitant variable 
B) a treatment variable 
C) the dependent variable 
D) a blocking variable 
E) a constant

Question 19

For the following ANOVA table,the observed F value is ___.

Accepted Answer

A) 0.67 
B) 1.50 
C) 6.00 
D) 5.00 
E) 4.00 
A) 0.67 
B) 1.50 
C) 6.00 
D) 5.00 
E) 4.00

Question 20

Pate's Pharmacy,Inc.operates a regional chain of 120 pharmacies.Each pharmacy's floor plan includes a greeting card department which is relatively isolated.Sandra Royo,Marketing Manager,feels that the level of lighting in the greeting card department may affect sales in that department.She chooses three levels of lighting (soft,medium,and bright)and randomly assigns six pharmacies to each lighting level.Sandra's null hypothesis is ___.

Accepted Answer

A) $\mu$ 1 =$\mu$ 2 = $\mu$ 3 
B) $\mu$ 1 $\neq$ $\mu$ 2 $\neq$  $\mu$ 3 
C) $\mu$ 1 $\ge$ $\mu$ 2 $\ge$ $\mu$ 3 
D) $\mu$ 1 $\le$ $\mu$ 2 $\le$ $\mu$ 3 
E) $\mu$ 1 $\le$$\mu$ 2 $\ge$ $\mu$ 3 
A) $\mu$ 1 =$\mu$ 2 = $\mu$ 3 
B) $\mu$ 1 $\neq$ $\mu$ 2 $\neq$  $\mu$ 3 
C) $\mu$ 1 $\ge$ $\mu$ 2 $\ge$ $\mu$ 3 
D) $\mu$ 1 $\le$ $\mu$ 2 $\le$ $\mu$ 3 
E) $\mu$ 1 $\le$$\mu$ 2 $\ge$ $\mu$ 3

In an experimental design,treatment variables are response variables.

In experimental design,classification variables are independent variables.

The following graph indicates a ___.

In experimental design,a characteristic of the subjects that was present prior to the experiment and is not the result of the experimenter's manipulations or control is called a classification variable.

Test a completely randomized design using a one-way analysis of variance.

Describe an experimental design and its elements,including independent variables-both treatment and classification-and dependent variables.

For the following ANOVA table,the observed F value is ___.

Introduction to Statistics

Charts and Graphs

Descriptive Statistics

Probability

Discrete Distributions

Continuous Distributions

Sampling and Sampling Distributions

Statistical Inference: Estimation for Single Populations

Statistical Inference: Hypothesis Testing for Single Populations

Statistical Inferences About Two Populations

Simple Regression Analysis and Correlation

Multiple Regression Analysis

Building Multiple Regression Models

Time-Series Forecasting and Index Numbers

Analysis of Categorical Data

Nonparametric Statistics

Statistical Quality Control

Decision Analysis

Filters

Exam 11: Analysis of Variance and Design of Experiments

In an experimental design,treatment variables are response variables.

In experimental design,classification variables are independent variables.

The following graph indicates a ___.

In experimental design,a characteristic of the subjects that was present prior to the experiment and is not the result of the experimenter's manipulations or control is called a classification variable.

Test a completely randomized design using a one-way analysis of variance.

Data from a randomized block design are shown in the following table: With α\alphaα = 0.05,the observed F value for the blocking effects null hypothesis is ___.

Describe an experimental design and its elements,including independent variables-both treatment and classification-and dependent variables.

For the following ANOVA table,the observed F value is ___.

Introduction to Statistics

Charts and Graphs

Descriptive Statistics

Probability

Discrete Distributions

Continuous Distributions

Sampling and Sampling Distributions

Statistical Inference: Estimation for Single Populations

Statistical Inference: Hypothesis Testing for Single Populations

Statistical Inferences About Two Populations

Simple Regression Analysis and Correlation

Multiple Regression Analysis

Building Multiple Regression Models

Time-Series Forecasting and Index Numbers

Analysis of Categorical Data

Nonparametric Statistics

Statistical Quality Control

Decision Analysis

Filters