Question 1

If we 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 different. 
B)  the variables are independent. 
C)  the population variances are the same. 
D)  the sample means are significantly different. 
A)  the populations from which our samples come are different. 
B)  the variables are independent. 
C)  the population variances are the same. 
D)  the sample means are significantly different. A

Question 2

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 3

The ANOVA test is most appropriate for dependent variables that are________.

Accepted Answer

A)  discrete and ordinal. 
B)  discrete and continuous. 
C)  continuous and nominal. 
D)  continuous and interval-ratio. 
A)  discrete and ordinal. 
B)  discrete and continuous. 
C)  continuous and nominal. 
D)  continuous and interval-ratio. D

Question 4

Which of the following correctly states the relationship between SST (the total sum of squares), SSB (the sum of squares between), and SSW (the sum of squares within)?

Accepted Answer

A)  SST = SSB + SSW 
B)  SST = SSB - SSW 
C)  SSW = SSB + SST 
D)  SSB = SST - SSW 
A)  SST = SSB + SSW 
B)  SST = SSB - SSW 
C)  SSW = SSB + SST 
D)  SSB = SST - SSW

Question 5

In the ANOVA test, the symbol 'dfb' refers to________.

Accepted Answer

A)  the mean square estimate between. 
B)  degrees of freedom associated with SSB. 
C)  degrees forward beneath. 
D)  degrees of fullness, behind estimate. 
A)  the mean square estimate between. 
B)  degrees of freedom associated with SSB. 
C)  degrees forward beneath. 
D)  degrees of fullness, behind estimate.

Question 6

Which of the following is an assumption that must be made in Step 1 of the ANOVA test?

Accepted Answer

A)  Independent random samples 
B)  Dependent random samples 
C)  Level of measurement is nominal 
D)  Stratified random samples 
A)  Independent random samples 
B)  Dependent random samples 
C)  Level of measurement is nominal 
D)  Stratified random samples

Question 7

ANOVA is a one tailed test and we are concerned only with those outcomes in which there is more variance________.

Accepted Answer

A)  within categories than between categories. 
B)  between categories than within categories. 
C)  within populations than samples. 
D)  within samples than populations. 
A)  within categories than between categories. 
B)  between categories than within categories. 
C)  within populations than samples. 
D)  within samples than populations.

Question 8

The research hypothesis for the ANOVA test is________.

Accepted Answer

A)  μ 1 μ 2 μ 3 μ N. 
B)  that at least one population mean is different. 
C)  SST = SSB = SSW. 
D)  that at least one of the sums of squares is different. 
A)  μ 1 μ 2 μ 3 μ N. 
B)  that at least one population mean is different. 
C)  SST = SSB = SSW. 
D)  that at least one of the sums of squares is different.

Question 9

The population variance is a measure of _________.

Accepted Answer

A)  central tendency. 
B)  dispersion. 
C)  location. 
D)  degrees of freedom. 
A)  central tendency. 
B)  dispersion. 
C)  location. 
D)  degrees of freedom.

Question 10

With the ANOVA test, the ___________ the difference between categories, relative to the differences within, the ________ likely that the null hypothesis will be rejected.

Accepted Answer

A)  smaller, more 
B)  greater, more 
C)  smaller, less 
D)  b & c are both correct 
A)  smaller, more 
B)  greater, more 
C)  smaller, less 
D)  b & c are both correct

Question 11

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.

Accepted Answer

The answer of A random sample of 15 families representing...

Question 12

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.

Question 13

A researcher has analyzed differences in average College Board scores for random samples of students from four different colleges. The obtained F score is 0.45. What can be concluded about the null hypothesis?

Accepted Answer

A)  Nothing, more information is needed 
B)  Reject, the differences did not occur by random chance 
C)  Fail to reject, differences are not statistically significant 
D)  Fail to reject, differences are statistically significant 
A)  Nothing, more information is needed 
B)  Reject, the differences did not occur by random chance 
C)  Fail to reject, differences are not statistically significant 
D)  Fail to reject, differences are statistically significant

Question 14

In an ANOVA test, if MSB is significantly _____ than the MSW, we will ________.

Accepted Answer

A)  less, reject the null hypothesis 
B)  greater, reject the null hypothesis 
C)  greater, fail to reject the null hypothesis 
D)  greater, recompute as this is mathematically impossible 
A)  less, reject the null hypothesis 
B)  greater, reject the null hypothesis 
C)  greater, fail to reject the null hypothesis 
D)  greater, recompute as this is mathematically impossible

Question 15

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 16

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 answer choices 
A)  the Z distribution. 
B)  the t distribution. 
C)  the F distribution. 
D)  None of the answer choices

Question 17

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 18

To construct estimates of the population variance, we divide each sum of squares by its respective________.

Accepted Answer

A)  degrees of freedom. 
B)  N. 
C)  category mean. 
D)  standard deviation. 
A)  degrees of freedom. 
B)  N. 
C)  category mean. 
D)  standard deviation.

Question 19

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 20

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.

If we reject the null hypothesis in a test using analysis of variance, we are concluding that________.

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

The ANOVA test is most appropriate for dependent variables that are________.

Which of the following correctly states the relationship between SST (the total sum of squares), SSB (the sum of squares between), and SSW (the sum of squares within)?

In the ANOVA test, the symbol 'dfb' refers to________.

Which of the following is an assumption that must be made in Step 1 of the ANOVA test?

ANOVA is a one tailed test and we are concerned only with those outcomes in which there is more variance________.

The research hypothesis for the ANOVA test is________.

The population variance is a measure of _________.

With the ANOVA test, the ___ the difference between categories, relative to the differences within, the likely that the null hypothesis will be rejected.

The F ratio is equal to________.

A researcher has analyzed differences in average College Board scores for random samples of students from four different colleges. The obtained F score is 0.45. What can be concluded about the null hypothesis?

In an ANOVA test, if MSB is significantly _ than the MSW, we will ____.

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________.

The sampling distribution for the ANOVA test is________.

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

To construct estimates of the population variance, we divide each sum of squares by its respective________.

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

ANOVA proceeds by developing two separate estimates of the _________.

Introduction

Basic Descriptive Statistics Tables Percentages Rates and Ratios and Graphs

Measures of Central Tendency

Measures of Variation

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 for Nominal and Ordinal Level Variables

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

If we reject the null hypothesis in a test using analysis of variance, we are concluding that________.

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

The ANOVA test is most appropriate for dependent variables that are________.

Which of the following correctly states the relationship between SST (the total sum of squares), SSB (the sum of squares between), and SSW (the sum of squares within)?

In the ANOVA test, the symbol 'dfb' refers to________.

Which of the following is an assumption that must be made in Step 1 of the ANOVA test?

ANOVA is a one tailed test and we are concerned only with those outcomes in which there is more variance________.

The research hypothesis for the ANOVA test is________.

The population variance is a measure of _________.

With the ANOVA test, the ___________ the difference between categories, relative to the differences within, the ________ likely that the null hypothesis will be rejected.

The F ratio is equal to________.

A researcher has analyzed differences in average College Board scores for random samples of students from four different colleges. The obtained F score is 0.45. What can be concluded about the null hypothesis?

In an ANOVA test, if MSB is significantly _____ than the MSW, we will ________.

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________.

The sampling distribution for the ANOVA test is________.

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

To construct estimates of the population variance, we divide each sum of squares by its respective________.

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

ANOVA proceeds by developing two separate estimates of the _________.

Introduction

Basic Descriptive Statistics Tables Percentages Rates and Ratios and Graphs

Measures of Central Tendency

Measures of Variation

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 for Nominal and Ordinal Level Variables

Association Between Variables Measured at the Interval Ratio Level

Elaborating Bivariate Tables

Partial Correlation and Multiple Regression and Correlation

Filters

With the ANOVA test, the ___ the difference between categories, relative to the differences within, the likely that the null hypothesis will be rejected.

In an ANOVA test, if MSB is significantly _ than the MSW, we will ____.