My alma mater hosts a widely used web-based tool for statistical procedures that includes t-tests. Find it here. Click on "t-Tests & procedures", then go to "Two-Sample t-Test for Independent or Correlated Samples", then click on "independent samples" (given the description of your set-up above), then enter in the values for each condition, click "calculate", and viola you'll have your results.
Cool experiment by the way. Note that if you do multiple tests (like on both ZQ and length of REM), you might want to do a multiple comparisons correction to maintain that familywise error rate.
Thanks for the link! That seems like what I want; for example, I didn't have any problem plugging in my placebo/D ZQ scores to get a one-tailed p = 0.078395.
you might want to do a multiple comparisons correction
The only one I know is the Bonferroni one, but that's for independent tests, IIRC, while I strongly expect correlations among the results (ZQ is made partially out of things like REM and deep sleep length, so there'd be correlations by definition, and one would expect my sleep quality rating to correlate with ZQ even assuming that's not being fa...
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!