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

## Answer This Question

## Related Questions

- statistic - A sample of 59 night-school students' ages is obtained in order to ...
- statistics - Can someone guide me on how to solve this problem: A sample of 52 ...
- statistics - A sample of 70 night-school students' ages is obtained in order to ...
- Statistics - A sample of 53 night-school students' ages is obtained in order to...
- Math help - Could someone work one of these out so I can use as example. A ...
- statistics - A sample of 65 night-school students' ages is obtained in order to ...
- AP Statistics - A school psychologist reports that the mean number of hours the ...
- elizabeth high school - . An admissions director wants to estimate the mean age ...
- statistics - Question 1 A school psychologist reports that the mean number of ...
- Statistics - An admissions director wants to estimate the mean age of all ...

More Related Questions