If you have a Graphing calculator it can probably do it for you. If you have a TI-84 its Stats->tests I think you'd want "2-SampTTest" but its been a while since I've used that function. Their website gives more info. -edit to add detail/clarification
I don't, no.
Quite a few of us are working on interesting projects; many of those are solo, but some could maybe use some help. So here's the place to ask!