How do I set up a prospective power calculation?
I am teaching a 2nd semester stat methods course to grad students not in statistics. This year is the first time in 8 years that I have taught it. 8 years ago, everything was SAS-based. This year, I am letting students choose among R (which I can support easily), SAS (also easily supported) and JMP (also easily supported for most things). My issue is setting up a power / sample size calculatio...