Every AB test is wrong 6 minutes readThe industry, through concepts like agility and Lean Startups, has taken on rapidly the practice of performing AB tests. In a nutshell, the AB tests are cont...

Where does the t-distribution come from? Sampling with unknown variance 5 minutes readThe Student’s t-distribution is ubiquitous in statistics, more specifically in the realm of hypothesis testing in continuous variables. What it means concept...