The document discusses hypothesis testing and provides examples to illustrate the process. It explains how to state the research question and hypotheses, set the decision rule, calculate test statistics, decide if results are significant, and interpret the findings. An example tests if narcissistic individuals look in the mirror more often than others and finds they do based on a test statistic exceeding the critical value. A second example finds no significant difference in recovery time for patients with or without social support after surgery.

1. Hypothesis Testing