could someone help me with this intro to stat. problem

[Luv 2 muah 143]

5 of 10 volunteers are randomly selected to receive self-defense training.  The
other 5 receive no training.  At the end of the training period, all subjects
complete a self-confidence questionnaire.  

a.)  Is there a difference in self-confidence between the 2 groups (p<.01)?


b.)  What are the effects of self-defense traing on self-confidence (I'm
assuming a two-tailed test?).  Explain analysis

Please help, I can't figure it out...my mind has gone blank!!!!