Sunday

February 1, 2015

February 1, 2015

Posted by **Dick** on Tuesday, May 24, 2011 at 8:34am.

- Statistics -
**PsyDAG**, Tuesday, May 24, 2011 at 10:53amZ = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√(n-1)(You can use n for simplicity.)

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 that Z score.

- Statistics -
**bill**, Friday, May 25, 2012 at 5:26am0.246?

**Answer this Question**

**Related Questions**

Statistics - City A has 1,000,000 people; City B has 4,000,000 people. Suppose ...

Statistics - A random sample of 384 people in a mid-sized city (city one) ...

Statistics - A random sample of 384 people in a mid-sized city (city one) ...

statistics - Suppose you are trying to estimate the percent of women in a city. ...

statistics - Suppose you are trying to estimate the percent of women in a city. ...

Statistics - A survey organization takes a simple random sample of 625 ...

STATISTICS - How can I solve this? A random sample of medical files is used to ...

us history - A city council is in charge of passing a city law, or (blank) < ...

physics - an airplane flies 200km from city a to city b east,then 200km south ...

College Physics - An airplane flies 200 km due west from city A to city B and ...