Population standard deviation = 23 N = 49 X = 14 a) Set up a 98% C.I.E. for population Mean b) Set up a 95% C.I.E. for population Proportion c) Between what two values around the mean 99% of observations fall? d) Between what two values around the mean 98% of observations fall? e) Above what value only 2% of observations fall? f) Ifs 23, do parts a) and b) =