The t Tests

1
The t Tests

• Review

2
Comparison of paired to independent sample t-test
3
Paired samples t-test

• Perform paired samples t-test
• Calculate 95 CI

4
(No Transcript)
5
Independent samples t-test

• Perform independent samples t-test
• Calculate 95 CI

6
Question

• Why is the paired samples t-test significant?
• The difference is the same

7
Group Practice
8
Final Exam

• Study Guide will be posted this afternoon
• Homework answers will be posted Friday afternoon
• Make sure that you can calculate following
• One sample t-test
• Paired samples t-test
• Independent samples t-test
• Make sure you can interpret the output for each.