Statistical testing in Python offers a way to make sure your data is meaningful. It only takes a second to validate your data ...

Business owners like to know how their decisions will impact their businesses. According to Harvard Business School Online, before making decisions, managers may explore the benefits of hypothesis ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

This article reviews important concepts and methods that are useful for hypothesis testing. First, we discuss the Neyman-Pearson framework. Various approaches to optimality are presented, including ...

What is Fisher's exact test? Fisher’s exact test is a statistical hypothesis test used to assess the association between two binary variables in a contingency table and is particularly useful when ...

Does email substitute for or augment in-person and phone contact? Since the internet became popular, analysts have wondered about the relationship between email and other means of social contact. Some ...

For any probability model $M\equiv \{p(x|\theta,\omega),\theta \in \Theta,\omega \in \Omega \}$ assumed to describe the probabilistic behaviour of data x∈ X, it is ...

What is the Friedman test? The Friedman test, also sometimes referred to as Friedman’s two-way analysis of variance by ranks, is a non-parametric statistical test used to investigate whether groups of ...