Presentation Transcript
T-Test :T-Test Presented
By
Guillermo J. Villalonga
Objectives :Objectives Discuss the use and interpretation of t-tests
T-Test :T-Test Definition
Types
Differences
What is a t test? :What is a t test? Is a test of a null hypothesis that the mean values in the two groups are equal, meaning that no difference is found
Why do we use the t-test? :Why do we use the t-test? The t-test is used to identify some significant difference between two groups
How many form of t-test do we use? :How many form of t-test do we use? Two forms
Independent t-test
Paired t-test
What is an independent t-test? :What is an independent t-test? Is a test that consider the difference between the mean
What is the paired t-test? :What is the paired t-test? Is a test that consider the mean of the differences