A random sample of n measurements was selected from a population with unknown mean and
standard deviation =15 for each of the situations in parts a through d. Calculate a 99% confidence
interval for for each of these situations. a. n=50,x=34 b. n=250,x=120 c. n=125,x=14 d. n=125,x=
5.97 a.1 , ) (Round to two decimal places as needed.) b. ( , ) (Round to two decimal places as
needed.) c. (, ) (Round to two decimal places as needed.) d. (,) (Round to two decimal places as
needed.) e. Since we are given =15 we should use the standard normal distribution to get the
critical value here. TRUE or FALSE? True False.
A random sample of n measurements was selected from a popula.pdf
1. A random sample of n measurements was selected from a population with unknown mean and
standard deviation =15 for each of the situations in parts a through d. Calculate a 99% confidence
interval for for each of these situations. a. n=50,x=34 b. n=250,x=120 c. n=125,x=14 d. n=125,x=
5.97 a.1 , ) (Round to two decimal places as needed.) b. ( , ) (Round to two decimal places as
needed.) c. (, ) (Round to two decimal places as needed.) d. (,) (Round to two decimal places as
needed.) e. Since we are given =15 we should use the standard normal distribution to get the
critical value here. TRUE or FALSE? True False
