iteachstats - lecture 3: Hypothesis Testing - Part 6 (Non Parametric Testing)
Channel: iteachstats
Date: 22/10/2013

In this screencast lecture we begin to consider what the implications are for our statistical testing if the underlying data distribution is not normal by comparing the results from a Student's T-Test and Mann-Whitney U Test.  How can we tell if it departs from the normal curve?  Using SPSS we look at two tests for normality, the  Kolmogorov--Smirnov test and Shapiro--Wilk test.