Question 1

When computing a chi-square goodness-of-fit test,the frequency expected in a given cell should never be less than ______.

Accepted Answer

A)  the sample size 
B)  the number of cells 
C)  the frequency observed 
D)  five 
A)  the sample size 
B)  the number of cells 
C)  the frequency observed 
D)  five

Question 2

Nonparametric tests do not make inferences about population parameters,although these tests can be used to test hypothesized relationships in the population.

Accepted Answer

A) True 
 B)False

Question 3

The phi coefficient can be used to estimate the effect size of a 2 * 2 chi-square test for independence.

Accepted Answer

A) True 
 B)False

Question 4

A researcher computes a 2 * 2 chi-square test for independence.What is the critical value for this test at a .05 level of significance?

Accepted Answer

A)  3.84 
B)  5.99 
C)  7.81 
D)  9.49 
A)  3.84 
B)  5.99 
C)  7.81 
D)  9.49

Question 5

A researcher conducts two chi-square tests.The 2 * 2 chi-square was $\chi$2 = 3.92.The 2 *3 chi-square was $\chi$2 = 5.92.Which chi-square test resulted in a decision to reject the null hypothesis at a .05 level of significance?

Accepted Answer

A)  the 2 * 2 chi-square 
B)  the 2 *10 3 chi-square 
C)  both chi-square tests results in a decision to reject the null hypothesis 
D)  none; both chi-square tests result in a decision to retain the null hypothesis 
A)  the 2 * 2 chi-square 
B)  the 2 *10 3 chi-square 
C)  both chi-square tests results in a decision to reject the null hypothesis 
D)  none; both chi-square tests result in a decision to retain the null hypothesis

Question 6

To appropriately interpret the chi-square goodness-of-fit test,it is necessary to compare differences ______.

Accepted Answer

A)  at each level of the categorical variable 
B)  across the levels of the categorical variable 
C)  within and between expected frequencies 
A)  at each level of the categorical variable 
B)  across the levels of the categorical variable 
C)  within and between expected frequencies

Question 7

One way a researcher can correct for having expected frequencies smaller than five is to increase the sample size such that ______.

Accepted Answer

A)  it is equal to the number of cells 
B)  it is three times larger than the number of cells 
C)  it is five times larger than the number of cells 
D)  it is seven times smaller than the number of cells 
A)  it is equal to the number of cells 
B)  it is three times larger than the number of cells 
C)  it is five times larger than the number of cells 
D)  it is seven times smaller than the number of cells

Question 8

Which of the following is an example of a parametric test?

Accepted Answer

A)  analysis of variance 
B)  one-sample t test 
C)  Pearson correlation 
D)  all of these 
A)  analysis of variance 
B)  one-sample t test 
C)  Pearson correlation 
D)  all of these

Question 9

Variance is not computed using the chi-square tests.

Accepted Answer

A) True 
 B)False

Question 10

When the chi-square test for independence is significant,this indicates that there is significant variability between groups.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is a statistical procedure used to test hypotheses about the discrepancy between the observed and expected frequencies in two or more nominal categories?

Accepted Answer

A)  one-way ANOVA 
B)  analysis of regression 
C)  chi-square test 
D)  all of these 
A)  one-way ANOVA 
B)  analysis of regression 
C)  chi-square test 
D)  all of these

Question 12

A 2 * 2 chi-square test for independence has 4 degrees of freedom.

Accepted Answer

A) True 
 B)False

Question 13

The observed frequencies can be summarized,______.

Accepted Answer

A)  in a table 
B)  in a figure 
C)  in the main text 
D)  all of these 
A)  in a table 
B)  in a figure 
C)  in the main text 
D)  all of these

Question 14

What is the key assumption for a chi-square goodness-of-fit test?

Accepted Answer

A)  The population is normally distributed. 
B)  Observed frequencies are independently recorded in each cell. 
C)  Expected frequencies are homogeneous. 
D)  All of these. 
A)  The population is normally distributed. 
B)  Observed frequencies are independently recorded in each cell. 
C)  Expected frequencies are homogeneous. 
D)  All of these.

Question 15

If $\chi$2 = 4.79,then a chi-square goodness-of-fit test would be significant when k = 2,but not when k = 3.

Accepted Answer

A) True 
 B)False

Question 16

As a general rule,the larger the degrees of freedom for a chi-square test,______.

Accepted Answer

A)  the smaller the critical value will be 
B)  the larger the critical value will be 
C)  the smaller the level of significance will be 
D)  the larger the level of significance will be 
A)  the smaller the critical value will be 
B)  the larger the critical value will be 
C)  the smaller the level of significance will be 
D)  the larger the level of significance will be

Question 17

Which of the following is recorded using a chi-square goodness-of-fit test and a chi-square test for independence?

Accepted Answer

A)  variance 
B)  frequency observed 
C)  frequency expected 
D)  frequency observed and frequency expected 
A)  variance 
B)  frequency observed 
C)  frequency expected 
D)  frequency observed and frequency expected

Question 18

Which of the following is an example of a nonparametric test?

Accepted Answer

A)  analysis of variance 
B)  the t tests 
C)  chi-square test 
D)  Pearson correlation 
A)  analysis of variance 
B)  the t tests 
C)  chi-square test 
D)  Pearson correlation

Question 19

The test statistic is the same for a chi-square goodness-of-fit test and a chi-square test for independence.

Accepted Answer

A) True 
 B)False

Question 20

The interpretation of a 2 * 2 chi-square test for independence is similar to what other type of statistical test?

Accepted Answer

A)  goodness-of-fit chi-square test 
B)  2 * 2 analysis of variance 
C)  phi correlation coefficient 
D)  two-independent-sample t test 
A)  goodness-of-fit chi-square test 
B)  2 * 2 analysis of variance 
C)  phi correlation coefficient 
D)  two-independent-sample t test

When computing a chi-square goodness-of-fit test,the frequency expected in a given cell should never be less than ______.

Nonparametric tests do not make inferences about population parameters,although these tests can be used to test hypothesized relationships in the population.

The phi coefficient can be used to estimate the effect size of a 2 * 2 chi-square test for independence.

A researcher computes a 2 * 2 chi-square test for independence.What is the critical value for this test at a .05 level of significance?

A researcher conducts two chi-square tests.The 2 * 2 chi-square was $\chi$ ² = 3.92.The 2 *3 chi-square was $\chi$ ² = 5.92.Which chi-square test resulted in a decision to reject the null hypothesis at a .05 level of significance?

To appropriately interpret the chi-square goodness-of-fit test,it is necessary to compare differences ______.

One way a researcher can correct for having expected frequencies smaller than five is to increase the sample size such that ______.

Which of the following is an example of a parametric test?

Variance is not computed using the chi-square tests.

When the chi-square test for independence is significant,this indicates that there is significant variability between groups.

Which of the following is a statistical procedure used to test hypotheses about the discrepancy between the observed and expected frequencies in two or more nominal categories?

A 2 * 2 chi-square test for independence has 4 degrees of freedom.

The observed frequencies can be summarized,______.

What is the key assumption for a chi-square goodness-of-fit test?

If $\chi$ ² = 4.79,then a chi-square goodness-of-fit test would be significant when k = 2,but not when k = 3.

As a general rule,the larger the degrees of freedom for a chi-square test,______.

Which of the following is recorded using a chi-square goodness-of-fit test and a chi-square test for independence?

Which of the following is an example of a nonparametric test?

The test statistic is the same for a chi-square goodness-of-fit test and a chi-square test for independence.

The interpretation of a 2 * 2 chi-square test for independence is similar to what other type of statistical test?

Introduction to Statistics

Summarizing Data: Frequency Distributions in Tables and Graphs

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance,effect Size,and Power

Testing Means: One-Sample and Two-Independent-Sample T Tests

Testing Means: Truehe Related-Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated-Measuresdesign

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Tests for Ordinal Data

Filters

Exam 17: Nonparametric Tests: Chi-Square Tests

When computing a chi-square goodness-of-fit test,the frequency expected in a given cell should never be less than ______.

Nonparametric tests do not make inferences about population parameters,although these tests can be used to test hypothesized relationships in the population.

The phi coefficient can be used to estimate the effect size of a 2 * 2 chi-square test for independence.

A researcher computes a 2 * 2 chi-square test for independence.What is the critical value for this test at a .05 level of significance?

A researcher conducts two chi-square tests.The 2 * 2 chi-square was χ\chiχ 2 = 3.92.The 2 *3 chi-square was χ\chiχ 2 = 5.92.Which chi-square test resulted in a decision to reject the null hypothesis at a .05 level of significance?

To appropriately interpret the chi-square goodness-of-fit test,it is necessary to compare differences ______.

One way a researcher can correct for having expected frequencies smaller than five is to increase the sample size such that ______.

Which of the following is an example of a parametric test?

Variance is not computed using the chi-square tests.

When the chi-square test for independence is significant,this indicates that there is significant variability between groups.

Which of the following is a statistical procedure used to test hypotheses about the discrepancy between the observed and expected frequencies in two or more nominal categories?

A 2 * 2 chi-square test for independence has 4 degrees of freedom.

The observed frequencies can be summarized,______.

What is the key assumption for a chi-square goodness-of-fit test?

If χ\chiχ 2 = 4.79,then a chi-square goodness-of-fit test would be significant when k = 2,but not when k = 3.

As a general rule,the larger the degrees of freedom for a chi-square test,______.

Which of the following is recorded using a chi-square goodness-of-fit test and a chi-square test for independence?

Which of the following is an example of a nonparametric test?

The test statistic is the same for a chi-square goodness-of-fit test and a chi-square test for independence.

The interpretation of a 2 * 2 chi-square test for independence is similar to what other type of statistical test?

Introduction to Statistics

Summarizing Data: Frequency Distributions in Tables and Graphs

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance,effect Size,and Power

Testing Means: One-Sample and Two-Independent-Sample T Tests

Testing Means: Truehe Related-Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated-Measuresdesign

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Tests for Ordinal Data

Filters

A researcher conducts two chi-square tests.The 2 * 2 chi-square was $\chi$ ² = 3.92.The 2 *3 chi-square was $\chi$ ² = 5.92.Which chi-square test resulted in a decision to reject the null hypothesis at a .05 level of significance?

If $\chi$ ² = 4.79,then a chi-square goodness-of-fit test would be significant when k = 2,but not when k = 3.