I have a big problem

What do you do when you have a very basic disagreement with your PI about the research project that she is paying you to work on?

Normally I would just do the project in whatever way she was requesting and then get a new job ASAP. Unfortunately, what she wants me to do is analyze the data and come to conclusions, but I don't think we have enough data to come to any conclusions. I'm suppose to be writing my thesis from this data, but I can't write because I don't think there is anything conclusive in this data. The more I look at the information we have the more I have questions instead of answers.