Hypothesis Testing Flashcards
1
Q
What is a Null Hypothesis?
A
The statement being tested
2
Q
What is an Alternative Hypothesis?
A
The other way things could be
3
Q
Paired Data is?
A
When the observations are not independent of each other, you find if the mean difference is 0
4
Q
What is a test statistic?
A
The measure of how far a sample statistic is from the null hypothesis about a population parameter
5
Q
What is p-value?
A
Probability of the sample statistic if the null hypothesis is true
6
Q
When do you use a z-test?
A
If you know your population SD or if the sample is large enough
