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? (relevant section)
(b) Based on your confidence interval, can you reject the null hypothesis at the .05 level? (relevant section)
(c) What do you conclude? (relevant section & relevant section)