I am watching my public law lecture today and marking statistics assignments

My public law lecture for today is at 1:30. I have to give some basic statistics labs tonight at 5 and 9 PM and I also have to give a test on confidence limits and hypothesis testing at 7 PM to engineers. I have an assignment to grade for the basic statistics course and will grade more of it this morning. I would like to get this grading done in the next three hours ideally.