The following questions use data from theAngry Moods(AM) case study.

http://onlinestatbook.com/case_studies/angry_moods.html

http://onlinestatbook.com/case_studies/data/angry_moods.txt

Is there a difference in how much males and females use aggressive behavior to improve an angry mood? For the "Anger-Out" scores, compare the means for each gender.

(a) What is the 95% confidence interval on the difference between means?

(b) Based on your confidence interval, can you reject the null hypothesis at the .05 level?

(c) What do you conclude?

Compare athletes and non-athletes on the mean Anger-In score.