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January 30, 2015

January 30, 2015

Posted by **margie wilcox** on Wednesday, October 3, 2012 at 9:42pm.

about a 95% chance that the mean vehicle speed will be between ___ and ___.

- statistics (incomplete) -
**PsyDAG**, Thursday, October 4, 2012 at 2:52amWhat is the mean and standard deviation for the sample?

Z = (score-mean)/SEm

SEm = SD/√n

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (±.425) related to the Z score.

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