Monday

March 30, 2015

March 30, 2015

Posted by **Mike** on Monday, June 18, 2012 at 10:55pm.

- Statistics -
**PsyDAG**, Tuesday, June 19, 2012 at 10:39amZ = (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.

- Statistics -
**Anonymous**, Friday, June 22, 2012 at 12:24pmThe probability of being a smoker for a population of college students is 0.20.The standard deviation for samples of 1600 students is 0.01. The standard deviation would be smallest for which of these sample sizes?

A) 16

**Answer this Question**

**Related Questions**

statistics - According to a recent studey, 1 in every 4 women has been a victim ...

statistics - we want to if men and women perform differently on statistics tests...

math - A small college has 1250 students. There are 30 more women than men. How ...

STATISTICS - Length of Hospital Stays: The average length of “short” hospital ...

statistics - A sample survey interviews an SRS of 263 college women. Suppose (as...

college psych - Which of the following is true of the prevalance rate of ...

statistics - a computer teacher has 20 students 8 who are women and 12 are men. ...

Statistics(math) - (20.47 S-AQ) A sample survey interviews an SRS of 252 college...

statistics - There were 50 men and 50 women who were randomly selected from a ...

math - At a certain college, there are 7 men for every 5 women. If there are 440...