Posted by **Laynette** on Friday, September 2, 2011 at 9:48pm.

A researcher is interested in estimating the noise levels in decibels at area urban hospitals. She wants to be 95% confident that her estimate is correct. If the standard deviation is 4.02, how large a sample is needed to get the desired information to be accurate within 0.58 decibels? Show all work.

## Answer This Question

## Related Questions

- statistics - A researcher is interested in estimating the noise levels in ...
- statistics - A researcher is interested in estimating the average salary of ...
- statistics - A researcher is interested in estimating the average salary of ...
- statistics - confidence intervals: A researcher is interested in estimating the ...
- Basic Statistics - A researcher is interested in estimating the average salary ...
- math - A researcher is interested in estimating the average salary of Police ...
- statistics - Suppose that a researcher is interested in estimating the mean ...
- STATISTICS - Suppose that a researcher is interested in estimating the mean ...
- Statistics - A nurse at a local hospital is interested in estimating the birth ...
- Statistics - You are getting ready to take a sample from a large population, and...

More Related Questions