10.2. Test of Independence http://www.ck12.org
a. 450
b. 280
c. 612
d. 782
- What is the total number of observations in this sample?
a. 782
b. 533
c. 1, 062
d. 612 - What is the expected frequency for the number of males that did not study abroad?
a. 161
b. 208
c. 111
d. 129 - How many Degrees of Freedom are in this example?
a. 1
b. 2
c. 3
d. 4 - True or False: Our null hypothesis would be that females are as likely as males to study abroad.
- What is the Chi-Square statistic for this example?
a. 1. 60
b. 2. 45
c. 3. 32
d. 3. 98 - If the Chi-Square critical value at.05 and 1 degree of freedom is 3.81 and we have a calculated Chi-Square
value of 2.22, we would:
a. reject the null hypothesis
b. fail to reject the null hypothesis - True or False: We use the Test of Homogeneity to evaluate the equality of several samples of certain variables.
- The Test of Homogeneity is carried out the exact same way as:
a. The Goodness-of-Fit test
b. The Test of Independence
Review Answers
- To examine if two variables are related.
- True
- A
- D
- C
- A
- A
- True
- A