Wednesday

July 30, 2014

July 30, 2014

Posted by **mike** on Tuesday, April 9, 2013 at 11:33am.

- social science statistics -
**PsyDAG**, Tuesday, April 9, 2013 at 2:36pmZ = (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 your Z score.

- social science statistics -
**Anonymous**, Wednesday, April 24, 2013 at 2:38pmyes

**Related Questions**

graduate statistics - A nursing professor was curious as to whether the students...

stats - Relatively speaking, which statistics exam did you do better on? On ...

math - in a mathematics class half of the students scored 91 on an achievement ...

math - in a mathematics class, half of the students scored 91 on an achievement ...

math - in a mathematics class, half of the students scored 91 on an achievement ...

statistics - A class test resulted in a mean score of 60% and a standard ...

Statistics - On a chemistry exam, Student A scored a 81 and Student B scored a ...

statistics - there are 80 students in a math class.20% of the students in the ...

Statistics - A class survey in a large class for first-year college students ...

statistics - Professor Smith conducted a class exercise in which students ran a ...