Take notes from the videos below and/or pages 520 through 530. The evens from problems 2-18 are assigned for classwork and will be submitted on quia at: http://www.quia.com/quiz/6190050.html
Don't forget you can practice with the odds, if you want a head start before the quia is posted.
Video 1: The t-distribution
Video 2: Calculating Confidence Intervals with the t-distribution