Posted by **Hope** on Tuesday, October 4, 2011 at 7:30pm.

If someone gives you a sample mean and a standard deviation, you can find a confidence interval. But what if someone gives you the confidence interval instead and asks you to find the sample mean? How can you do that? Here's an example: a 95% confidence interval for a mean is 9.5 to 12.5. What is the sample mean?

## Answer this Question

## Related Questions

- Statistics - A random sample of 90 observations produced a mean that = 25.9 and...
- statistics - A sample of 106 golfers showed that their average score on a ...
- statistics - A sample of 134 golfers showed that their average score on a ...
- Math Statistics - 5. Students in an introductory statistics class were asked to ...
- RES 341 - A sample of 300 is taken and the sample mean is computed to be 7.65 ...
- Statistics - A 95% confidence interval for a population mean, ?, is given as (18...
- Statistics - 1. A study of 40 people found that they could do on the average15 ...
- Statistics - The standard deviation for a population is σ = 15.3. A sample ...
- statistics - A simple random sample of 60 items resulted in a sample mean of 80...
- Statistics - Which of the following statements correctly interprets a 95% ...