Page 1 of 1

A random sample of n measurements was selected from a population with unknown mean and standard deviation 20 for each of

Posted: Mon Jul 11, 2022 11:54 am
by answerhappygod
A random sample of n measurements was selected from a populationwith unknown mean and standard deviation 20 for each of thesituations in parts a through d. Calculate a 90 ​% confidenceinterval for for each of these situations.
n=70 x=28
n=250 x=120
n=100 x=14
n=100 x=4.89