Give an example of a non directional null and alternative hy

Give an example of a non directional null and alternative hypothesis using girls on the run variables.

H0:

H1:

Solution

A null hypothesis (Ho) is a no effect or no difference hypothesis or negation hypothesis that tends to refuse or deny what is explicitly indicated in a given research hypothesis.

An Alternative Hypothesis is a hypothesis that is contrary to null hypothesis. It is simply alternative to the null. In hypothesis testing, an alternate hypothesis is the statement which a researcher is testing. This statement is true from the researcher\'s point of view. He ultimately proves to reject the null and replace it with alternate hypothesis.

Example using girls on the run

Null hypothesis, Ho: Girls on the run won’t have any difference with boys on the run

Alternative non directional hypothesis, H1: There will be a difference between girls on the run and boys on the run.

If the research hypothesis predicts with direction that is one specific group will have a larger mean than the other than it would be directional alternate hypothesis.