Answer:
An observation is made. To understand why the phenomenon is occurring, a hypothesis is built up which can be tested by a scientific method. The result of the experiment can be true or false.
If the result false, it implies that the dependent and independent variables are not related and a new experiment must be designed or a modification is required in the experiment.
Thus, even if the result is false, the hypothesis would be useful because conclusions can be drawn from it and next course of action can be defined.