(Repost to previous question) Speculate on how Hamlet might have determined if the ghost is telling the truth about the cause of the death of his father? What is the significance of the fact that Hamlet seems to accept the statements as true?

Hamlet is a man of ideas and he certainly does not rule out the possibility of his father's ghost appearing before him. He however is never sure if the ghost is entirely honest. This is why Hamlet goes through his long drawn out plan for revenge. He needs to make sure this was an honest ghost first.