Saturday

April 19, 2014

April 19, 2014

Posted by **Erinn** on Tuesday, April 26, 2011 at 3:37pm.

- Statistics -
**PsyDAG**, Wednesday, April 27, 2011 at 1:49pmZ = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√(n-1)

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 related to the Z score.

**Related Questions**

Statistics - Hello I need help solving a statistics problem and have no idea ...

statistics - The income of college students is normally distributed with a mean ...

Statistics - A simple random sample of 50 female 14-year-olds is selected. The ...

sample size question - A federal funding program is available to low-income ...

math - i'm supposed to come up with different questions for 11-12 year olds, 13-...

math URGENT! - 28. You are surveying students to find out their opinion of the ...

Statistics - In a recent year, Delaware had the highest per capita annual income...

Stats - The census figures show that the average income for a family in a rural ...

accounting - Income Statement Data: This year Last year Revenue $150,000 $120,...

stats - 3. The mean family income in Arizona is about $64,750 with a standard ...