Knowing your data well is crucial for any statistical analysis. Therefore you should always start by looking at your data graphically and calculating basic descriptive statistics to get an idea of how your data is shaped. First, this post shows how to compute basic...
The central limit theorem is one of most important concepts in all of statistics. If you are not at all familiar with it, consult any introductory statistics book or watch this great introduction at Khan Academy. Shortly put, the central limit theorem says that if we...
