Posted by **katy** on Sunday, July 29, 2012 at 11:45pm.

The National Center for Education surveyed 4400 college graduates about the lengths of time required to earn their bachelor's degrees. THe sample mean is 5.15 years, and assume that the population standard deviation is known to be 1.68 years. Based on gthe sample data, construct the 99% confidence interval for the mean time required by all college graduates.

Also, determine the margin of error, E.

## Answer This Question

## Related Questions

- statistics - The National Center for Education surveyed 4400 college graduates ...
- Statistics Homework - Statistics Question: Years to Earn Bachelor's Degree Years...
- Statistics - Years to Earn Bachelor’s Degree: Listed below are the lengths of ...
- STAT - 1. In a study of the income of U.S. factory workers, a random sample of ...
- Statistics - The Economic Policy Institute periodically issues reports on wages ...
- Statistics - An admissions director wants to estimate the mean age of all ...
- elizabeth high school - . An admissions director wants to estimate the mean age ...
- Math - A random sample of 42 college graduates revealed that they worked an ...
- statistics - The scores of students on the ACT college entrance examination in ...
- Math - In order to estimate the mean amount of time computer users spend on the ...

More Related Questions