t-Test Flashcards
1
Q
How is data distributed in one sample t tests?
A
Normally
2
Q
What is a one sample t test used for?
A
Examine if a sample is consistent with the population mean
3
Q
What pieces of info are needed for a one sample t test?
A
Sample of (n) Theoretical population mean
4
Q
What is a two sample t test used for?
A
Compare the means of two samples
5
Q
What info is needed for a two sample t test?
A
Two means of two populations
6
Q
What are the two versions of the two-sample t test?
A
Equal and unequal variances
7
Q
Which distribution is needed for two-sample t-test?
A
Non-normal is fine as long as symmetrical
8
Q
What is the null hypothesis of the paired t test
A
No difference between before and after
9
Q
What is the f-test used for?
A
Compare sample variance
