Has evolved to mean the most correct and complete explanation for human behavior, the scientific study of behavior and mental processes.
The answer in the first sentence above is hypothesis because it is defined as having to state a prediction or conjecture in regards about an experiment whereas the second sentence' answer is experimental question because researchers tend to state what they plan to do in regards of their investigation and they do not apply any predictions in the experiment.
The homestead act allowed settlers from the west settle on land, only paying a small fee. but they must stay on their land for 5 years before getting the land. They were allowed to leave the land but must be present when the inspector comes to see how they are doing.