why is normality tested why is normality test considered useless? is normality testing essentially useless should a normality test be used for large samples what tests are used for random variable analysis why is normality testing important is normality a valid test why would you use a normality test is normality testing useless? why is normality test used why are normality tests used why does testing nulls be useful why would normality testing be used for small data sets? is null in normality test a valid test why do we use null tests when do we use normality test is it a valid assumption to test for normality why use a normality test why is it important to do a normality test if null why do we test for null