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April 1, 2015

April 1, 2015

Posted by **Anonymous** on Sunday, May 2, 2010 at 8:38pm.

Ethnic Group A: N = 15 M= 55 S2 = 6.5 Ethnic Group B : N = 23 M= 51 S2 = 4.5

If the standard deviation of the distribution of the difference between means is .76, what is the t score?

- statistics -
**steph**, Sunday, May 2, 2010 at 8:41pmu mean the z score

- statistics -
**PsyDAG**, Monday, May 3, 2010 at 10:58amZ = (Mean1 - Mean2)/Standard Error of Difference between means

Z = (55-51)/.76

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