I’ve spent the better part of the afternoon trying to remember the proper way to compute a Z-test for proportions. This has not been fun. It doesn’t help that the data I’m using is non-representative for gender, so the results need to be considered by gender, which just adds one too many pieces too the puzzle for me to feel like I have any hope of identifying the correct sample size to put into the silly little formula. And while there are calculators out there on the web that will compute this for me, I have a lot of these little buggers to calculate and I don’t particularly feel like plugging them all into a little calculator when I *should* be able to just put the damn formula into Excel. *Should* being the operative word there.
Guess I’m making a trip to the Statistical Consulting Center tomorrow. *sigh*