n = 10 N = 15 How many different samples are possible? Answer: a)3003 b)10897286.400 c)O d)-3001 e)1 f)None of these We want to produce a 95% confidence interval estimate of the campus average study time that was no wider than +/-0.5 hour. The estimated value of s is 2.72 hours. What should the sample size (in units) for this study be? Answer: a) 114 b)113.6680 c)-113.6680 d)1.9598 e)-1.9598 f)0 g)1 h)None of these