The choice of symbol depends on the wording of the hypothesis test. H a never has a symbol with an equal in it. H 0 always has a symbol with an equal in it. Mathematical Symbols Used in H 0 and H a: H 0 They are “reject H 0” if the sample information favors the alternative hypothesis or “do not reject H 0” or “decline to reject H 0” if the sample information is insufficient to reject the null hypothesis. The evidence is in the form of sample data.Īfter you have determined which hypothesis the sample supports, you make adecision. Since the null and alternative hypotheses are contradictory, you must examine evidence to decide if you have enough evidence to reject the null hypothesis or not. H a: The alternative hypothesis : It is a claim about the population that is contradictory to H 0 and what we conclude when we reject H 0. H 0: The null hypothesis: It is a statement about the population that either is believed to be true or is used to put forth an argument unless it can be shown to be incorrect beyond a reasonable doubt. These hypotheses contain opposing viewpoints. They are called the null hypothesis and the alternative hypothesis. The actual test begins by considering two hypotheses. Describe hypothesis testing in general and in practice.
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