If you know which of two variables is the independent variable and which one is the dependent variable,you can propose

Question

Quizplus · Accepted Answer

Knowing which variable is the independent and which is the dependent allows us to propose all three types of hypotheses. The null hypothesis is based on the assumption that there is no relationship between the two variables, the one-tailed hypothesis predicts the direction of the relationship, and the two-tailed hypothesis predicts a relationship, but without specifying its direction.

If You Know Which of Two Variables Is the Independent