8.7 Learning Objectives Revisited

As a result of completing this chapter, you will be able to do the following:

• Write down the null and alternative hypotheses for a study (Section 8.1).
• Explain the difference between the type I and the type II errors and the relationship between these two types of errors (Section 8.2).
• Define the P-value, both mathematically and in plain English (Section 8.4).
• Distinguish between the one-mean Z test and the one-mean t-test, and identify when each test should be used (Section 8.5).
• Conduct a one-mean Z and a one-mean t-test using the P-value or critical value approaches (Section 8.5).
• Calculate the P-value or the range of the P-value for a hypothesis test (Section 8.5).
• Explain the relationship between confidence intervals and hypothesis tests. (Section 8.6).