Friday

September 19, 2014

September 19, 2014

Posted by **DeeDee 89** on Sunday, June 16, 2013 at 12:36pm.

A sample of 59 night-school students' ages is obtained in order to estimate the mean age of night-school students. x = 25 years. The population variance is 20.

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

(b) Find the 95% confidence interval for ì. (Give your answer correct to two decimal places.)

Lower Limit

Upper Limit

(c) Find the 99% confidence interval for ì. (Give your answer correct to two decimal places.)

Lower Limit

Upper Limit

**Answer this Question**

**Related Questions**

statistics - Can someone guide me on how to solve this problem: A sample of 52 ...

statistic - A sample of 59 night-school students' ages is obtained in order to ...

statistics - A sample of 70 night-school students' ages is obtained in order to ...

AP Statistics - A school psychologist reports that the mean number of hours the ...

college statistic - A sample of 51 night-school students' ages is obtained in ...

statistics - Question 1 A school psychologist reports that the mean number of ...

elizabeth high school - . An admissions director wants to estimate the mean age ...

math - if a school has a hot-dog special for lunch. there are 18 classrooms and ...

statistics - A random sample of 100 students from a high school was selected. If...

Statistics - An admissions director wants to estimate the mean age of all ...