Common Mistakes During A/B Testing

<p>During the last couple of years, I have witnessed a lot of mistakes that people make during A/B testing design and post-analysis. I would like to discuss here three of such mistakes and how to overcome them.</p> <h1><strong>Use Mann-Whitney for comparing medians</strong></h1> <p>The first mistake is not an appropriate use of Mann-Whitney test.The method is massively misunderstood and misused, because most people use this test ,assuming that it is approximately non-parametric &ldquo;t test&rdquo; for medians. In reality, we can use Mann-whitney test only to check if there is a shift in our distribution.</p> <p><a href="https://towardsdatascience.com/common-mistakes-during-a-b-testing-bdb9eefdc7f0"><strong>Learn More</strong></a></p>