A sample of 58 night school students' is obtained in order to estimate the mean age of night school students. X bar = 24.1 years. The population variance is 24.
A) give a point estimate for ? (ONE decimal place)
B) find the 95% confidence interval for ? (TWO decimal places)
Lower limit ______
Upper limit ______
C) find the 99% confidence interval for ? (TWO decimal places)
Lower limit ______
Upper limit ______