If you take the word hypothesis at its meanest, and ignore everything else I said, sure. But a hypothesis that is grounded in an absence of analysis or understanding of the situation, or an appreciation of the existing body of literature related to a topic, or any other informing principle, is of limited value.

i.e., it's not about checking your hypothesis, it's about checking the method by which you formed your hypothesis.

Checking your hypothesis is fine, but of value only to reject, not to actually find a hypothesis you can accept.