By several orders of magnitude.
Simple math says she is probably telling the truth ((in that false accusations are far more rare). Whether or not her accusation is enough to keep him off the highest bench is another story. It cannot be proved, and opinions will be about 100% correlated with party.
If I were Chuck Grassley, I’d be pissed at the horrid vetting that the Trump people did. There must have been a dozen acceptable jurists without assaults in their past. And they knew about it - that’s why they had the letter by 65 women ready to go.
Word had it that Trump picked him because of his position on indicting a sitting president.
That’s why we are in this mess.