A hypothesis is a statement or conclusion based on, for example, statistical observations. A hypothesis must refer to at least two variables, otherwise a connection cannot be established.
The statement made in a hypothesis goes beyond the current state of actual knowledge, i.e., a hypothesis is a (new) established presumption. Hypotheses are to be phrased in a clear and precise manner, to ensure that their statement can be empirically confirmed or refuted.
Please note that the definitions in our statistics encyclopedia are simplified explanations of terms. Our goal is to make the definitions accessible for a broad audience; thus it is possible that some definitions do not adhere entirely to scientific standards.