Question 1

A useful computational shortcut for the ANOVA test is expressed as

Accepted Answer

A) SST = SSB/SSW. 
B) dfw = dfb + SST. 
C) SSW = SST - SSB. 
D) SSB = SSW - SST. 
A) SST = SSB/SSW. 
B) dfw = dfb + SST. 
C) SSW = SST - SSB. 
D) SSB = SSW - SST. C

Question 2

In the ANOVA test,what assumption must be made about the shape of the population distribution?

Accepted Answer

A) the population distribution is normal in shape 
B) the test is non-parametric,no assumption need be made about the population 
C) population distribution is a bivariate table 
D) the test is parametric,population distribution is assumed to not be normal 
A) the population distribution is normal in shape 
B) the test is non-parametric,no assumption need be made about the population 
C) population distribution is a bivariate table 
D) the test is parametric,population distribution is assumed to not be normal A

Question 3

The total sum of squares (SST)is found by subtracting the overall mean from ____ and squaring and summing the differences.

Accepted Answer

A) the category means 
B) the category totals 
C) each of the scores 
D) the sum of squares between 
A) the category means 
B) the category totals 
C) each of the scores 
D) the sum of squares between C

Question 4

The quantity SSW measures the amount of variation

Accepted Answer

A) after subtracting the total variation (SST). 
B) within the categories. 
C) in the population. 
D) assuming the null hypothesis is true. 
A) after subtracting the total variation (SST). 
B) within the categories. 
C) in the population. 
D) assuming the null hypothesis is true.

Question 5

In a test using ANOVA,the average ages of three different samples are 37.56,37.57,37.58.This pattern would be consistent with the assumption that the

Accepted Answer

A) null hypothesis is false. 
B) null hypothesis is true. 
C) research hypothesis is false. 
D) sample standard deviations approach zero. 
A) null hypothesis is false. 
B) null hypothesis is true. 
C) research hypothesis is false. 
D) sample standard deviations approach zero.

Question 6

If we fail to reject the null hypothesis in a test using analysis of variance,we are concluding that

Accepted Answer

A) the populations from which our samples come are the same. 
B) the samples are dependent. 
C) the population variances are the different. 
D) the sample means are different. 
A) the populations from which our samples come are the same. 
B) the samples are dependent. 
C) the population variances are the different. 
D) the sample means are different.

Question 7

The ANOVA test will tolerate some violation of the model assumptions as long as

Accepted Answer

A) sample size is quite small. 
B) sample sizes are roughly equal. 
C) at least one sample is greater than 50. 
D) there are more than 4 separate samples. 
A) sample size is quite small. 
B) sample sizes are roughly equal. 
C) at least one sample is greater than 50. 
D) there are more than 4 separate samples.

Question 8

In the ANOVA test,if the null hypothesis is false,the means of the different sample should be ____ and the standard deviation of the different samples should be ____.

Accepted Answer

A) similar in value,large in value 
B) close to zero,equal to their respective variances 
C) very different,lower in value then the means 
D) very different in value,relatively low in value 
A) similar in value,large in value 
B) close to zero,equal to their respective variances 
C) very different,lower in value then the means 
D) very different in value,relatively low in value

Question 9

According to the tests reported in the text,which group had the most sex partners over the past five years?

Accepted Answer

A) never married 
B) widowed 
C) divorced 
D) married 
A) never married 
B) widowed 
C) divorced 
D) married

Question 10

One limitation of ANOVA is that,when the null hypothesis is rejected,the test

Accepted Answer

A) does not tell us which sample mean(s)is/are different. 
B) tells us nothing about the standard deviations. 
C) does not tell us which population variances are zero. 
D) does not tell us which population variances are greater than zero. 
A) does not tell us which sample mean(s)is/are different. 
B) tells us nothing about the standard deviations. 
C) does not tell us which population variances are zero. 
D) does not tell us which population variances are greater than zero.

Question 11

When we have an interval-ratio dependent variable and are comparing two groups,the appropriate test of significance is the ____.When we have an interval-ratio dependent variable and are comparing three or more groups,the appropriate test of significance is the ____.

Accepted Answer

A) t test,ANOVA 
B) ANOVA,t test 
C) chi square,ANOVA 
D) t test,chi square 
A) t test,ANOVA 
B) ANOVA,t test 
C) chi square,ANOVA 
D) t test,chi square

Question 12

In the ANOVA test,if the null hypothesis is true

Accepted Answer

A) the sample standard deviations should be zero. 
B) the sample means should be roughly equal in value. 
C) the population means should be very different from each other . 
D) alpha should be less than zero. 
A) the sample standard deviations should be zero. 
B) the sample means should be roughly equal in value. 
C) the population means should be very different from each other . 
D) alpha should be less than zero.

Question 13

ANOVA proceeds by developing two separate estimates of the

Accepted Answer

A) population mean. 
B) population standard deviation. 
C) population variance. 
D) sample variance. 
A) population mean. 
B) population standard deviation. 
C) population variance. 
D) sample variance.

Question 14

What would be the most appropriate test of significance for research situations in which we have an interval-ratio dependent variable and an independent variable with three or more categories?

Accepted Answer

A) the t test 
B) Chi square 
C) ANOVA 
D) the IQV 
A) the t test 
B) Chi square 
C) ANOVA 
D) the IQV

Question 15

The sampling distribution for the ANOVA test is

Accepted Answer

A) the Z distribution. 
B) the t distribution. 
C) the F distribution. 
D) none of the above 
A) the Z distribution. 
B) the t distribution. 
C) the F distribution. 
D) none of the above

Question 16

The ANOVA test is designed for dependent variables that have been measured at

Accepted Answer

A) the interval-ratio level. 
B) the nominal level. 
C) the ordinal level. 
D) any level of measurement. 
A) the interval-ratio level. 
B) the nominal level. 
C) the ordinal level. 
D) any level of measurement.

Question 17

We have rejected the null hypothesis in an ANOVA test.This means that the variation ____ the samples is significantly greater than the variation ____ the samples.

Accepted Answer

A) within,between 
B) above,below 
C) outside,inside 
D) between,within 
A) within,between 
B) above,below 
C) outside,inside 
D) between,within

Question 18

A random sample of 15 families representing three social classes has been observed for the frequency with which the parents administer physical punishment to the children over a period of a week.Are the differences significant? Use the five step model as a guide and write a sentence or two of interpretation for your results.
 $\begin{array} { | l | l | l |} 
\hline \text { Warking } & \text { Middele } & \text { upger } \
\hline \text { Class } & \text { Clars } & \text { Class } \
\hline & & \
\hline 10 & 11 & 7 \
\hline 9 & 10 & 5 \
\hline 4 & 5 & 2 \
\hline 2 & 2 & 0 \
\hline 1 & 0 & 0 \
\hline
\end{array}$

Accepted Answer

SST = 221.

Question 19

In the ANOVA test,degrees of freedom within (dfw)are equal to (N - k)and degrees of freedom between (dfb)are equal to ____.

Accepted Answer

A) (N - k) 
B) (k - 1) 
C) (N + k) 
D) (k - N) 
A) (N - k) 
B) (k - 1) 
C) (N + k) 
D) (k - N)

Question 20

The F ratio is equal to

Accepted Answer

A) SST - SSB. 
B) the "mean square between" divided by the "mean square within." 
C) the "mean square within" minus the "mean square between." 
D) the total variance divided by the mean square between. 
A) SST - SSB. 
B) the "mean square between" divided by the "mean square within." 
C) the "mean square within" minus the "mean square between." 
D) the total variance divided by the mean square between.

A useful computational shortcut for the ANOVA test is expressed as

In the ANOVA test,what assumption must be made about the shape of the population distribution?

The total sum of squares (SST)is found by subtracting the overall mean from ____ and squaring and summing the differences.

The quantity SSW measures the amount of variation

In a test using ANOVA,the average ages of three different samples are 37.56,37.57,37.58.This pattern would be consistent with the assumption that the

If we fail to reject the null hypothesis in a test using analysis of variance,we are concluding that

The ANOVA test will tolerate some violation of the model assumptions as long as

In the ANOVA test,if the null hypothesis is false,the means of the different sample should be and the standard deviation of the different samples should be .

According to the tests reported in the text,which group had the most sex partners over the past five years?

One limitation of ANOVA is that,when the null hypothesis is rejected,the test

When we have an interval-ratio dependent variable and are comparing two groups,the appropriate test of significance is the .When we have an interval-ratio dependent variable and are comparing three or more groups,the appropriate test of significance is the .

In the ANOVA test,if the null hypothesis is true

ANOVA proceeds by developing two separate estimates of the

What would be the most appropriate test of significance for research situations in which we have an interval-ratio dependent variable and an independent variable with three or more categories?

The sampling distribution for the ANOVA test is

The ANOVA test is designed for dependent variables that have been measured at

We have rejected the null hypothesis in an ANOVA test.This means that the variation the samples is significantly greater than the variation the samples.

In the ANOVA test,degrees of freedom within (dfw)are equal to (N - k)and degrees of freedom between (dfb)are equal to ____.

The F ratio is equal to

Introduction

Basic Descriptive Statistics: Percentages, Ratios and Rates, Tables, Charts and Graphs

Measures of Central Tendency

Measures of Dispersion

The Normal Curve

Introduction to Inferential Statistics: Sampling and the Sampling Distribution

Estimation Procedures

Hypothesis Testing I: the One-Sample Case

Hypothesis Testing II: the Two-Sample Case

Hypothesis Testing Iv: Chi Square

Bivariate Association: Introduction and Basic Concepts

Association Between Variables Measured at the Nominal Level

Association Between Variables Measured at the Ordinal Level

Association Between Variables Measured at the Interval-Ratio Level

Elaborating Bivariate Tables

Partial Correlation and Multiple Regression and Correlation

Filters

Exam 10: Hypothesis Testing III: the Analysis of Variance

A useful computational shortcut for the ANOVA test is expressed as

In the ANOVA test,what assumption must be made about the shape of the population distribution?

The total sum of squares (SST)is found by subtracting the overall mean from ____ and squaring and summing the differences.

The quantity SSW measures the amount of variation

In a test using ANOVA,the average ages of three different samples are 37.56,37.57,37.58.This pattern would be consistent with the assumption that the

If we fail to reject the null hypothesis in a test using analysis of variance,we are concluding that

The ANOVA test will tolerate some violation of the model assumptions as long as

In the ANOVA test,if the null hypothesis is false,the means of the different sample should be ____ and the standard deviation of the different samples should be ____.

According to the tests reported in the text,which group had the most sex partners over the past five years?

One limitation of ANOVA is that,when the null hypothesis is rejected,the test

When we have an interval-ratio dependent variable and are comparing two groups,the appropriate test of significance is the ____.When we have an interval-ratio dependent variable and are comparing three or more groups,the appropriate test of significance is the ____.

In the ANOVA test,if the null hypothesis is true

ANOVA proceeds by developing two separate estimates of the

What would be the most appropriate test of significance for research situations in which we have an interval-ratio dependent variable and an independent variable with three or more categories?

The sampling distribution for the ANOVA test is

The ANOVA test is designed for dependent variables that have been measured at

We have rejected the null hypothesis in an ANOVA test.This means that the variation ____ the samples is significantly greater than the variation ____ the samples.

In the ANOVA test,degrees of freedom within (dfw)are equal to (N - k)and degrees of freedom between (dfb)are equal to ____.

The F ratio is equal to

Introduction

Basic Descriptive Statistics: Percentages, Ratios and Rates, Tables, Charts and Graphs

Measures of Central Tendency

Measures of Dispersion

The Normal Curve

Introduction to Inferential Statistics: Sampling and the Sampling Distribution

Estimation Procedures

Hypothesis Testing I: the One-Sample Case

Hypothesis Testing II: the Two-Sample Case

Hypothesis Testing Iv: Chi Square

Bivariate Association: Introduction and Basic Concepts

Association Between Variables Measured at the Nominal Level

Association Between Variables Measured at the Ordinal Level

Association Between Variables Measured at the Interval-Ratio Level

Elaborating Bivariate Tables

Partial Correlation and Multiple Regression and Correlation

Filters

In the ANOVA test,if the null hypothesis is false,the means of the different sample should be and the standard deviation of the different samples should be .

When we have an interval-ratio dependent variable and are comparing two groups,the appropriate test of significance is the .When we have an interval-ratio dependent variable and are comparing three or more groups,the appropriate test of significance is the .

We have rejected the null hypothesis in an ANOVA test.This means that the variation the samples is significantly greater than the variation the samples.