Describe 3 possible ways in which a hypothesis may arise

A hypothesis is a supposition made by the scientist. In order for a hypothesis to be a scientific hypothesis, the scientific method requires for it to be tested. If a hypothesis cannot be tested, it cannot be scientific hypothesis. It is important to state the hypothesis clearly at the beginning of a scientific paper. This enables the reader to understand the problem.

It may either be from
1. The observation process of the scientific method
2. Repeated study or an inquiry to revisit the study
3. An intervention to the already existing study.