Describe the purpose of hypothesis testing. Explain the steps of hypothesis testing while using an important current event in which you could study. To set the criteria for the decision, we must identify the critical value and the rejection region. What information do you need to set the criteria? How do you determine when to use a one-tailed test? When do you use a two-tailed test? The first problem we confront in analyzing data is determining the appropriate statistical test. Under what circumstances is a t statistic used instead of a z-score in a hypothesis test? Give an example of both a test where the t statistic is used and when the z-score is used. Be sure to include citations of all the sources you used