Question 1

How do you compute df for the chi-square test for goodness of fit?

Accepted Answer

A) df = n - 1 
B) df = n - 2 
C) df = n - C (where C is the number of categories) 
D) None of the other 3 choices is correct. 
A) df = n - 1 
B) df = n - 2 
C) df = n - C (where C is the number of categories) 
D) None of the other 3 choices is correct.

Question 2

Cramér's V is used to evaluate effect size for the chi-square test for independence whenever the test has df > 1.

Accepted Answer

A) True 
 B)False

Question 3

A chi?square test should not be used if any expected frequency is less than five.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following best describes the possible values for a chi-square statistic?

Accepted Answer

A) Chi-square is always a positive whole numbers. 
B) Chi-square is always positive but can contain fractions or decimal values. 
C) Chi-square can be either positive or negative, but always is a whole number. 
D) Chi-square can be either positive or negative and can contain fractions or decimals. 
A) Chi-square is always a positive whole numbers. 
B) Chi-square is always positive but can contain fractions or decimal values. 
C) Chi-square can be either positive or negative, but always is a whole number. 
D) Chi-square can be either positive or negative and can contain fractions or decimals.

Question 5

The phi-coefficient is used to evaluate effect size for a chi-square test for goodness of fit provided there are only two categories.

Accepted Answer

A) True 
 B)False

Question 6

It is impossible to obtain a negative value for chi-square.

Accepted Answer

A) True 
 B)False

Question 7

What is evaluated by the chi-square test for goodness of fit?

Accepted Answer

A) the relationship between two variables 
B) the mean differences between two or more treatments 
C) the shape or proportions for a population distribution 
D) None of the other options are evaluated by the chi-square test. 
A) the relationship between two variables 
B) the mean differences between two or more treatments 
C) the shape or proportions for a population distribution 
D) None of the other options are evaluated by the chi-square test.

Question 8

For a fixed level of significance, the critical value for chi-square increases as the size of the sample increases.

Accepted Answer

A) True 
 B)False

Question 9

A chi-square test for independence is being used to evaluate the relationship between two variables, one of which is classified into 3 categories and the second of which is classified into 4 categories.The chi-square statistic for this test would have df equal to ______.

Accepted Answer

A) 6 
B) 7 
C) 10 
D) 11 
A) 6 
B) 7 
C) 10 
D) 11

Question 10

One characteristic of nonparametric tests is that they make few, if any, assumptions about the populations being investigated.

Accepted Answer

A) True 
 B)False

How do you compute df for the chi-square test for goodness of fit?

Cramér's V is used to evaluate effect size for the chi-square test for independence whenever the test has df > 1.

A chi?square test should not be used if any expected frequency is less than five.

Which of the following best describes the possible values for a chi-square statistic?

The phi-coefficient is used to evaluate effect size for a chi-square test for goodness of fit provided there are only two categories.

It is impossible to obtain a negative value for chi-square.

What is evaluated by the chi-square test for goodness of fit?

For a fixed level of significance, the critical value for chi-square increases as the size of the sample increases.

A chi-square test for independence is being used to evaluate the relationship between two variables, one of which is classified into 3 categories and the second of which is classified into 4 categories.The chi-square statistic for this test would have df equal to ______.

One characteristic of nonparametric tests is that they make few, if any, assumptions about the populations being investigated.

Introduction to Statistics

Frequency Distributions

Central Tendency

Variability

Z-Scores

Probability

The Distribution of Sample Means

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures Anova

Two-Factor Analysis of Variance

Correlation

Introduction to Regression

The Binomial Test

Choosing the Right Statistics

Filters

Exam 17: Chi-Square Tests

How do you compute df for the chi-square test for goodness of fit?

Cramér's V is used to evaluate effect size for the chi-square test for independence whenever the test has df > 1.

A chi?square test should not be used if any expected frequency is less than five.

Which of the following best describes the possible values for a chi-square statistic?

The phi-coefficient is used to evaluate effect size for a chi-square test for goodness of fit provided there are only two categories.

It is impossible to obtain a negative value for chi-square.

What is evaluated by the chi-square test for goodness of fit?

For a fixed level of significance, the critical value for chi-square increases as the size of the sample increases.

A chi-square test for independence is being used to evaluate the relationship between two variables, one of which is classified into 3 categories and the second of which is classified into 4 categories.The chi-square statistic for this test would have df equal to ______.

One characteristic of nonparametric tests is that they make few, if any, assumptions about the populations being investigated.

Introduction to Statistics

Frequency Distributions

Central Tendency

Variability

Z-Scores

Probability

The Distribution of Sample Means

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures Anova

Two-Factor Analysis of Variance

Correlation

Introduction to Regression

The Binomial Test

Choosing the Right Statistics

Filters