Sunday

April 20, 2014

April 20, 2014

Posted by **GT** on Friday, December 28, 2012 at 2:31pm.

MEN WOMEN

Sample Size 32 30

Sample Mean 5.5 days 4.2 days

Pop. Standard Deviation 1.2 days 1.5 days

- STATISTICS -
**PsyDAG**, Sunday, December 30, 2012 at 3:07pmZ = (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/probability related to the Z score.

**Related Questions**

Statistics - Upon examining its records, a hospital computes the distribution of...

PHYSICS!!! - if the same ball rolls down from three different length trackways ...

medical information management - the average length of stay at hope hospital is ...

statistics - A study involving the economic burden of congestive heart failure ...

statistics - Using the average and standard devation for length variable from ...

Statistics - Length of stay in a chronic disease hospital of a certain patient ...

Math - Polygons and Quadrilaterals - A rectangle has a diagonal of length 125. ...

Math help please - 1. The ordered pairs (0, 1), (1, 4), (2, 16), (3, 64), and (4...

physics - If a rod is moving at a velocity equal to 1/2 the speed of light ...

English Expressions - 1. She has a ponytail. 2. She has pigtails. 3. She has ...