Question 1

The mean square is the sum of squares divided by

Accepted Answer

A)  the total number of observations. 
B)  its corresponding degrees of freedom. 
C)  its corresponding degrees of freedom minus one. 
D)  the total number of replications. 
A)  the total number of observations. 
B)  its corresponding degrees of freedom. 
C)  its corresponding degrees of freedom minus one. 
D)  the total number of replications.

Question 2

In order to determine whether or not the means of two populations are equal,

Accepted Answer

A)  a t test must be performed. 
B)  an analysis of variance must be performed. 
C)  either a t test or an analysis of variance can be performed. 
D)  a chi-square test can be performed. 
A)  a t test must be performed. 
B)  an analysis of variance must be performed. 
C)  either a t test or an analysis of variance can be performed. 
D)  a chi-square test can be performed.

Question 3

Consider the following information. ​
SSTR = 6750
H0: μ1 = μ2 = μ3 = μ4
SSE = 8000
Ha: At least one mean is different
​
The null hypothesis is to be tested at the 5% level of significance.The null hypothesis

Accepted Answer

A)  should be rejected. 
B)  should not be rejected. 
C)  was designed incorrectly. 
D)  cannot be tested. 
A)  should be rejected. 
B)  should not be rejected. 
C)  was designed incorrectly. 
D)  cannot be tested.

Question 4

In an analysis of variance where the total sample size for the experiment is nT and the number of populations is k, the mean square due to error is

Accepted Answer

A)  SSE/(nT - k). 
B)  SSTR/(nT - k). 
C)  SSE/(k - 1). 
D)  SSTR/k. 
A)  SSE/(nT - k). 
B)  SSTR/(nT - k). 
C)  SSE/(k - 1). 
D)  SSTR/k.

Question 5

An experimental design that permits simultaneous statistical conclusions about two or more factors is a

Accepted Answer

A)  randomized block design. 
B)  factorial design. 
C)  completely randomized design. 
D)  multiple block design. 
A)  randomized block design. 
B)  factorial design. 
C)  completely randomized design. 
D)  multiple block design.

Question 6

An ANOVA procedure is applied to data obtained from 6 samples where each sample contains 20 observations.The critical value of F occurs with

Accepted Answer

A)  6 numerator and 20 denominator degrees of freedom. 
B)  5 numerator and 20 denominator degrees of freedom. 
C)  5 numerator and 114 denominator degrees of freedom. 
D)  6 numerator and 114 denominator degrees of freedom. 
A)  6 numerator and 20 denominator degrees of freedom. 
B)  5 numerator and 20 denominator degrees of freedom. 
C)  5 numerator and 114 denominator degrees of freedom. 
D)  6 numerator and 114 denominator degrees of freedom.

Question 7

An experimental design where the experimental units are randomly assigned to the treatments is known as

Accepted Answer

A)  factor block design. 
B)  random factor design. 
C)  completely randomized design. 
D)  randomized treatment design. 
A)  factor block design. 
B)  random factor design. 
C)  completely randomized design. 
D)  randomized treatment design.

The mean square is the sum of squares divided by

In order to determine whether or not the means of two populations are equal,

Consider the following information. SSTR = 6750 H₀: μ₁ =μ₂ =μ₃ =μ₄ SSE = 8000 H_a: At least one mean is different The null hypothesis is to be tested at the 5% level of significance.The null hypothesis

In an analysis of variance where the total sample size for the experiment is n_T and the number of populations is k, the mean square due to error is

An experimental design that permits simultaneous statistical conclusions about two or more factors is a

An ANOVA procedure is applied to data obtained from 6 samples where each sample contains 20 observations.The critical value of F occurs with

An experimental design where the experimental units are randomly assigned to the treatments is known as

Data and Statistics

Descriptive Statistics: Tabulargraphical

Descriptive Statistics: Numerical

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Test of Independence and Goodness of Fit

Simple Linear Regression

Multiple Regression

Filters

Exam 13: Experimental Design and Analysis of Variance

The mean square is the sum of squares divided by

In order to determine whether or not the means of two populations are equal,

Consider the following information. ​ SSTR = 6750 H0: μ1 = μ2 = μ3 = μ4 SSE = 8000 Ha: At least one mean is different ​ The null hypothesis is to be tested at the 5% level of significance.The null hypothesis

In an analysis of variance where the total sample size for the experiment is nT and the number of populations is k, the mean square due to error is

An experimental design that permits simultaneous statistical conclusions about two or more factors is a

An ANOVA procedure is applied to data obtained from 6 samples where each sample contains 20 observations.The critical value of F occurs with

An experimental design where the experimental units are randomly assigned to the treatments is known as

Data and Statistics

Descriptive Statistics: Tabulargraphical

Descriptive Statistics: Numerical

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Test of Independence and Goodness of Fit

Simple Linear Regression

Multiple Regression

Filters

Consider the following information. SSTR = 6750 H₀: μ₁ =μ₂ =μ₃ =μ₄ SSE = 8000 H_a: At least one mean is different The null hypothesis is to be tested at the 5% level of significance.The null hypothesis

In an analysis of variance where the total sample size for the experiment is n_T and the number of populations is k, the mean square due to error is