How To Decide The Kavanaugh Case: 1

Try to answer (roughly) the following question as if you'd been asked it before any of this happened:

Suppose a man is about to be appointed to an important position. Suppose that a woman consequently comes forward, and she alleges that the man committed sexual assault against her 35 years ago. Suppose neither person is clearly telling the truth, and neither is clearly lying. Should we conclude that the allegation is true? Or not conclude that it is true?