To add to the discussion. I did a CS PhD with a statistical bent. It's served me well. However, I would see if an MS provided you with equivalent benefits from

To add to the discussion. I did a CS PhD with a statistical bent. It's served me well. However, I would see if an MS provided you with equivalent benefits from a career standpoint. Very few companies do "research". And if you're in the US, unless you acquire funding with yourself as the PI its going to be impossible to find an academic position.