Rubrics: have separate criteria for computing and interpreting the p-value about intro_stats HOT 3 CLOSED

I had to decide carefully here because there are like 5 or 6 places I could potentially divide a "multi-part" rubric entry, and as the rubric is quite long already, I don't want things to spiral out of control. So what I decided is to split any rubric entry that contained both a code chunk and a written answer. So p-values got two entries as requested, as did "Compute and report the test statistic" for similar reasons. I left the Type I/II error entry alone as it's just a single text answer block.

from intro_stats.

Relatedly, separating out "identify Type 1 vs. Type 2" and "interpret contextually" would be nice.

from intro_stats.

Heck, it may even be nice to have a separate <div class = "answer"> box for these on the R modules.

from intro_stats.