Posted by **steven** on Wednesday, April 14, 2010 at 10:27pm.

at the census bureau web site you can find the percent of adults in each state who have at least a bachelors degree. it makes no sense to find the mean for these data and use it to get a confidence interval for the mean percent U in all 50 states. Why not?

- statistics -
**drwls**, Thursday, April 15, 2010 at 5:02am
The fraction of people with a college degree in all states would require a WEIGHTED mean of the individual state averages, with the weighting done by population. The populations of states vary by a large factor. California has 50 times more people than North Dakota, for example.

## Answer this Question

## Related Questions

Statistics - At the Statistics Canada Web site, you can find the percent of ...

math - At the Statistics Canada Web site, you can find the percent of adults in ...

math statistics/probability - can anyone show me how to work this problem out ...

math - can anyone show me how to work this problem out thanks in advance The ...

Statistics - The body temperatures of adults are normally distributed with a ...

IT/205 - Read “The U.S. Census Bureau Field Data Collection Project: Don’t Count...

help me - Complete the matrix in Appendix E using information from the Asian ...

statistics - One of nature's patterns connects the percent of adult birds in a ...

statistics - assume adults have an IQ score that are normally distrubted with a ...

Data - Research South Carolina for data that is commonly used in health services...