3 If the population deviation o is known and we wish to

Last updated: 12/6/2023

3 If the population deviation o is known and we wish to estimate the population mean u with 95 confidence what is the appropriate critical value z to use a 1 28 b 1 645 c 1 96 d 2 33 The lower limit of a confidence interval at the 95 level of confidence for the population proportion when the sample size of 100 had 30 successes is a 0 3898 b 0 2102 d 0 3041 4 0 2959 1