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April 21, 2014

Homework Help: college statistic

Posted by samantha on Monday, July 23, 2012 at 6:46pm.

A sample of 51 night-school students' ages is obtained in order to estimate the mean age of night-school students. x = 26 years. The population variance is 19.

(a) Give a point estimate for μ. (Give your answer correct to one decimal place.)


(b) Find the 95% confidence interval for μ. (Give your answer correct to two decimal places.)
Lower Limit
Upper Limit

(c) Find the 99% confidence interval for μ. (Give your answer correct to two decimal places.)
Lower Limit
Upper Limit

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