1. What must be true in order to use the Student's t-distribution for a difference of two means?

2. What formula do we use to find the Standard Error for a difference of two means?

3. How do we find the Degrees of Freedom for a difference of two means?

4. How do we write the Null Hypothesis for a difference of two means?

5. What are the three ways we can write the Alternative Hypothesis for a difference of two means?

6. When is it appropriate to work with paired data (mean of the differences) instead of the difference of two means?

7. When working with paired data, what is the first thing we need to do?

8. How do we write the Null Hypothesis when working with paired data?

9. What are the three ways we can write the Alternative Hypothesis when we are working with paired data?

10. When working with paired data, what statistics do we use when finding the Confidence Interval or completing a Hypothesis Test?