Posted by **courntey** on Saturday, September 17, 2011 at 10:00pm.

Pleas HeLp!!!!!!!!!!

A random sample of the test scores of 100 applicants for college entry at a large junior college showed a mean score of 72.6. Determine a 99%, 95%, and 90% confidence interval for the m

mean score of all applicants at the

junior college. Assume the standard deviation of test scores is 10.5.

PTS Confidence interval

4 1. 99% confidence level x

4 2. 95% confidence level x

4 3. 90% confidence level x

## Answer this Question

## Related Questions

- statistics - A human resources manager wants to determine a confidence interval ...
- Probability and Statistics - The ACT scores of applicants to college are ...
- statistic - 1. Past experience indicates that the variance, ¦Ò2x, of the scores...
- college statistics - 2. A researcher has developed a new questionnaire for ...
- math - Suppose that a college admissions office needs to compare scores of ...
- Statistics - The College Board reported the following mean scores for the three ...
- statistics - The College Board reported the following mean scores for the three ...
- statistics - The College Board reported the following mean scores for the three ...
- Statistics - A researcher performs a hypothesis test to test the claim that ...
- statistics - The population standard deviation (σ) for a standardized ...