Question 1

The one-sample chi-square focuses on the distribution of two variables.

Accepted Answer

The one-sample chi-square test focuses on testing whether the observed frequency distribution of one variable fits an expected frequency distribution or follows a particular pattern. It does not involve the analysis of two variables.

Question 2

The one-sample chi-square test is also called test of independence.

Accepted Answer

The one-sample chi-square test is not called test of independence. It is used to test the goodness of fit of a distribution to a theoretical distribution. The test of independence uses the two-sample chi-square test.

Question 3

The one-sample chi-square is used to determine whether the distribution of a single categorical variable is significantly different from what would be expected by chance.

Accepted Answer

The one-sample chi-square is commonly used in hypothesis testing to determine whether the observed distribution of a categorical variable differs significantly from an expected distribution. It is also referred to as a goodness-of-fit test, as it assesses how well the observed data fit the expected distribution.

Question 4

A two-sample chi-square focuses on whether two or more variables are significantly related,or dependent.

Accepted Answer

A two-sample chi-square is used to determine if two or more categorical variables are significantly related or dependent on each other.

Question 5

How do nonparametric statistics differ from parametric statistics?

Accepted Answer

The answer of How do nonparametric statistics differ from parametric...

Question 6

Write an equation for a null hypothesis and research hypothesis for a one-sample chi-square test involving four groups.

Accepted Answer

The answer of Write an equation for a null hypothesis...

Question 7

How do you interpret X²₍₃₎= 18.9,p < 0.05?

Accepted Answer

The answer of How do you interpret X²₍₃₎= 18.9,p <...

Question 8

Chi-square is a nonparametric statistical test.

Accepted Answer

Chi-square is a nonparametric statistical test commonly used to compare observed data with expected data to determine if there is a significant difference. Unlike parametric tests, it does not require any assumptions about the distribution of the data.

Question 9

Give an example of a research situation where the one-sample chi-square test would be the most appropriate statistical technique to use.

Accepted Answer

The answer of Give an example of a research situation...

Question 10

What does the one-sample chi-square test determine?

Accepted Answer

The answer of What does the one-sample chi-square test determine?...

Question 11

Write a sample research question where the Fisher's exact test would be the most appropriate statistical technique to use.

Accepted Answer

The answer of Write a sample research question where the...

Question 12

The chi-square statistic measures the difference between the observed data and what is calculated.

Accepted Answer

The answer of The chi-square statistic measures the difference between...

Question 13

Write an equation for a null hypothesis and research hypothesis for a one-sample chi-square test involving three groups.

Accepted Answer

The answer of Write an equation for a null hypothesis...

Question 14

Write a sample research question where the Kolmogorov-Smirnov test would be the most appropriate statistical technique to use.

Accepted Answer

The answer of Write a sample research question where the...

Question 15

Parametric statistics are preferred when you are analyzing categorical variables.

Accepted Answer

Parametric statistics are preferred when analyzing continuous variables, while nonparametric statistics are preferred when analyzing categorical variables.

Question 16

What is the difference between a one-sample and a two-sample chi-square test?

Accepted Answer

The answer of What is the difference between a one-sample...

Question 17

In the chi-square test for independence,expected values and observed values are used,just like in the chi-square goodness-of-fit test.The difference is that in the test of independence,there are three dimensions involved,instead of one.

Accepted Answer

The chi-square test for independence involves two dimensions (variables) that are being tested for association, not three. Each dimension corresponds to a different categorical variable.

Question 18

Write a sample research question where the McNemar test would be the most appropriate statistical technique to use.

Accepted Answer

The answer of Write a sample research question where the...

Question 19

Nonparametric statistics can be preferred when you have sample sizes that are very small (less than 30).

Accepted Answer

Nonparametric methods do not make assumptions about the underlying population distribution and can be more robust when sample sizes are small or the data does not meet assumptions of normality or homogeneity of variance.

Quiz 17: Chi-Square and Some Other Nonparametric Tests: What to Do When Youre Not Normal

The one-sample chi-square focuses on the distribution of two variables.

The one-sample chi-square test is also called test of independence.

The one-sample chi-square is used to determine whether the distribution of a single categorical variable is significantly different from what would be expected by chance.

A two-sample chi-square focuses on whether two or more variables are significantly related,or dependent.

How do nonparametric statistics differ from parametric statistics?

Write an equation for a null hypothesis and research hypothesis for a one-sample chi-square test involving four groups.

How do you interpret X2(3)= 18.9,p < 0.05?

Chi-square is a nonparametric statistical test.

Give an example of a research situation where the one-sample chi-square test would be the most appropriate statistical technique to use.

What does the one-sample chi-square test determine?

Write a sample research question where the Fisher's exact test would be the most appropriate statistical technique to use.

The chi-square statistic measures the difference between the observed data and what is calculated.

Write an equation for a null hypothesis and research hypothesis for a one-sample chi-square test involving three groups.

Write a sample research question where the Kolmogorov-Smirnov test would be the most appropriate statistical technique to use.

Parametric statistics are preferred when you are analyzing categorical variables.

What is the difference between a one-sample and a two-sample chi-square test?

In the chi-square test for independence,expected values and observed values are used,just like in the chi-square goodness-of-fit test.The difference is that in the test of independence,there are three dimensions involved,instead of one.

Write a sample research question where the McNemar test would be the most appropriate statistical technique to use.

Nonparametric statistics can be preferred when you have sample sizes that are very small (less than 30).

How do you interpret X²₍₃₎= 18.9,p < 0.05?