A survey of female college students included a question asking how many times the respondent had binged on
alcohol in the last 30 days. On average, sophomores reported 0.993 binges in the last month and juniors reported
0.826. Use the STATA output below to help you test the hypothesis that sophomores binge drink more than
juniors. Use α=.01 and a one-tailed alternative hypothesis.

Question

A survey of female college students included a question asking how many times the respondent had binged on
alcohol in the last 30 days. On average, sophomores reported 0.993 binges in the last month and juniors reported
0.826. Use the STATA output below to help you test the hypothesis that sophomores binge drink more than
juniors. Use α=.01 and a one-tailed alternative hypothesis.

b77w · Answer

attachment

b77w · Answer

So I said fail to reject because when I did the math on my own I got t=2.2, meaning the p was somewhere between .01 and .025. However this STATA output says the t should be 1.08, what am I doing wrong

b77w · Answer

My t is almost double the one reported in STATA, am I wrong?