a college admissions director wishes to estimate the mean age of all students currently enrolled . in a random sample of 35 students, the mean age is found to be 23.9 years . from past studies , the...

a college admissions director wishes to estimate the mean age of all students currently enrolled . in a random sample of 35 students, the mean age is found to be 23.9 years . from past studies , the standard deviation is known to be 1.5 years . construct a 95 % confidence interval of the population mean age . round to 2 decimal places