Posted by **shannon** on Wednesday, May 8, 2013 at 12:08pm.

do students who learned English as well as another language simultaneously score worse on the SAT critical reading exam than the general population of test takers? the mean score di 501. A random sample of 100 test takers who learned English as another language simultaneously has a mean of reading score of 485 with a standard deviation of 116 do these results suggest that students who learn English as well as another language

- statistics -
**PsyDAG**, Wednesday, May 8, 2013 at 12:35pm
Z = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√n

If only one SD is provided, you can use just that to determine SEdiff.

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.

- statistics -
**shannon**, Wednesday, May 8, 2013 at 1:43pm
so, for the fist part it will be

(501-485)/116= .1379? what is the SE?

## Answer this Question

## Related Questions

- statistics - students who learned English as well as another language ...
- 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 - SAT Exam Scores – A school administrator wonders if students whose ...
- Math - The College Board reported the following mean scores for the three parts ...
- statistics - Scores on a national writing exam are approximately normally ...
- Statistics - A researcher is interested in whether students who attend private ...
- statistics - 1. A researcher is interested in whether students who attend ...
- statistics - The Graduate Record Exam (GRE) has a combined verbal and ...