Friday

December 19, 2014

December 19, 2014

Posted by **Anonymous** on Wednesday, February 29, 2012 at 8:52am.

- stats -
**PsyDAG**, Wednesday, February 29, 2012 at 12:03pmZ = (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 related to the Z score.

**Answer this Question**

**Related Questions**

statistics - A sample of 16 ATM transactions shows a mean transaction time of 67...

statistics 4. - The manufacturer of Porshe 918 Spyder car claims that their car ...

statistics 4. - The manufacturer of Porshe 918 Spyder car claims that their car ...

Statistics 4 - The manufacturer of Porshe 918 Spyder car claims that their car ...

statistics - The mean length of a work week for the population of workers was ...

stastics - A recent article in a computer magazine suggested that the mean time ...

statistics - A random sample of 36 statistics students were asked to add a ...

statistics - Experience in investigating insurance claims shows that the average...

statistics please - Experience in investigating insurance claims shows that the ...

Stats - A sample of 400 items is taken from a population whose standard ...