The word Null in the context of hypothesis testing means “nothing” or “zero.” As an example, if we wanted to test whether there was a difference in two population means based on the ...

Key Points Hypothesis testing provides organizations with a structured approach to evaluate assumptions using data, reducing ...

In the decades since its introduction, the neutral theory of evolution has become central to the study of evolution at the molecular level, in part because it provides a way to make strong ...

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 ...