Posted by **ann** on Thursday, March 28, 2013 at 12:45am.

confidence intervals: A researcher is interested in estimating the average salary of teachers in a large school district. She wants to be 95% confident that her estimate is correct. If the standard deviation is $1050, how large a sample is needed to be accurate within $200.

## Answer this Question

## Related Questions

- statistics - A researcher is interested in estimating the average salary of ...
- statistics - A researcher is interested in estimating the average salary of ...
- Basic Statistics - A researcher is interested in estimating the average salary ...
- math - A researcher is interested in estimating the average salary of Police ...
- statistics - A researcher is interested in estimating the noise levels in ...
- statistics - A researcher is interested in estimating the noise levels in ...
- Statistics - An economist found that a random sample of 42 high school teachers ...
- Statistics - An economist found that a random sample of 42 high school teachers ...
- statistics - Suppose that a researcher is interested in estimating the mean ...
- Estimating Using Confidence Intervals - An investor wants to determine the true ...

More Related Questions