Astin believes that people will be more persuaded by an argument if the person presenting the argument is tall,rather than if the presenter is short.Astin wants to test her belief in an experiment.In this instance,Astin should state her null hypothesis as
A) a presenter's height will have no impact on persuasion.
B) a short presenter will be more persuasive than a tall presenter.
C) a tall presenter will be less persuasive than a short presenter.
D) a tall presenter will be more persuasive than a short presenter.

Question

Quizplus · Accepted Answer

The null hypothesis typically states that there is no relationship or difference between two variables being tested. In this case, if Astin wants to test whether presenter's height affects persuasion, the null hypothesis would be that there is no impact of presenter's height on persuasion. Therefore, option A is the correct choice.

Astin Believes That People Will Be More Persuaded by an Argument