Twenty five seniors from a large metropolitan area school

Last updated: 3/8/2023

Twenty five seniors from a large metropolitan area school district volunteer to allow their Math SAT test scores to be used in a study These twenty five seniors had a mean Math SAT score of x 450 with a standard deviation of s 100 Assuming that the population of Math SAT scores for seniors in the district is approximately normally distributed which of the following gives the correct 90 confidence interval for u Select one a 450 4 b The confidence interval cannot be determined because the conditions for this inference procedure have not been met C 450 100 d 450 20 e 450 34 2