.Statistics Spring 2008Lab #1 Data Screening7. Normality Below, I describe five steps for determining and dealing with normality. However, the bottom line is that almost no one checks their data for normality; instead they assume normality, and use the statistical tests that are based upon assumptions of normality that have more power (ability to find significant results in the data). First, what is normality? A normal distribution is a symmetric bell-shaped curve defined by
