The term Hypothesis defines to propose explanation of an observable phenomenon. Hypothesis is originated from the Greek word hypotithenai means “to suppose” or “to put under.” A hypothesis is used to understand the phenomenon with the help of scientific theories and logics. It is quite different than scientific theories as the term hypothesis makes a clear understanding of the antecedent of a proposition. Hypothesis is used in almost each and every field of the life to find out the most acceptable answers of phenomena, problems, questions or equation including sciences and engineering.
There are many uses of hypothesis in modern sciences and arts. It is required by the researchers to check the confirmation of a theory. Hypothesis is classified in several categories based on their methodology and requires tools: Generally these are:
Scientific hypothesis: It provides a suggestion solution of the problem on the basis of the evidences, experiments and tests. Its properties are simplicity, testability, scope, fruitfulness and conservatism (suitability with other available knowledge).
Evaluation hypothesis: this type is based on Karl Popper’s formulation named conjectures and refutations. Like scientific hypothesis, evaluation hypothesis is not confirmed due to possibilities of other situation. It is a suggestive solution of a problem which may be false in the future.
Statistical hypothesis testing: In statistical hypothesis testing, two different hypothesis (known as null hypothesis and alternative hypothesis) are compared. The null hypothesis denies the relation between the phenomena while the alternative tries to find suggestive relations in phenomena. Through this method both hypothesis are compared to know the accuracy and viability of the suggestive solution. After testing the alternative hypothesis is accepted while the null hypothesis is rejected.