2. The LSAT (a test taken for law school admission) has a known standard deviation of 9 and a unimodal, symmetric distri
Posted: Wed Nov 24, 2021 9:18 am
2. The LSAT (a test taken for law school admission) has a known standard deviation of 9 and a unimodal, symmetric distribution of scores. Suppose that a random sample of 49 students is taken and their observed mean score is 160. a) Find a critical value for a 95% confidence interval for the mean. b) Find this 95% confidence interval. c) Explain carefully what your interval means. a