Discussion:
Q1: Describe the five step process for hypothesis testing. Which is the most difficult step, and why?
Q2: Define the concept of a t and z statistic. What do these statistics allow you to do? In other words, what is the statistical relevance of these formulas?
Q2: Discuss the importance of the standard deviation in relation to the z or t-test statistic. How is the calculation affected if you do, or do not know, the standard deviation.