4492

Consider these 4 samples potentially drawn from 4 different populations. Sample #1) 25 19 14 21 18 18 19 19 Sample #2) 25 15 22 20 15 20 16 20 20 16 20 11 Sample #3) 22 16 23 13 14 19 18 10 11 Sample #4) 12 11 13 10 25 19 Calculate the 95% and 99% confidence intervals of population means of these 4 samples.