Friday

November 21, 2014

November 21, 2014

Posted by **KP** on Friday, March 15, 2013 at 10:42am.

- STATS -
**PsyDAG**, Friday, March 15, 2013 at 11:23amDo you mean 59 or 56?

Z = (score-mean)/SD

Z = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√n = 10/√25 = ?

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.

**Answer this Question**

**Related Questions**

probability - The lifetime of a type-A bulb is exponentially distributed with ...

Physics(Please help) - A skier slides horizontally along the snow for a ...

Physics please help!! - A mass M is initially at rest on a horizontal surface...

Physics please help!! - A mass M is initially at rest on a horizontal surface...

Physics - A mass M is initially at rest on a horizontal surface, μs=0.30 ...

Statistics - What critical value for z would be used to test the hypotheses: H0...

bus stats - Given the following information about a hypothesis test of the ...

business stats - Given the following information about a hypothesis test of the ...

Solar Energy Help ASAP - In the figure below the absorption coefficient as a ...

Statistics - When estimating a population mean μ, where the population ...