Paco Garcia-Gonzalez receives funding from the Spanish Ministry of Economy. At the heart of the scientific method is the process of hypothesis testing. Given an observable phenomenon in the world, a ...

If the P value is less than 5%, reject the null hypothesis; if the P value is .05 or more, don't reject the null hypothesis. Statistics textbooks -- and statisticians for that matter -- focus almost ...

Steve Bunk's 5-PRIME on the null hypothesis was a good, brief piece. 1 However, he made the common error of confusing the null hypothesis (the hypothesis against ...

The first thing any scientist does before performing an experiment is to form a hypothesis about the experiment's outcome. This often takes the form of a null hypothesis, which is a statistical ...

Did you ever wonder why 19th century pirates are often represented wearing eye patches? I never did, because I assumed that it was for the obvious reason: they had lost an eye. Pirates, like many ...

The probability that the null hypothesis will be rejected when it is actually true is called the false positive rate and is determined by the significance level of the test (called alpha which is ...