Friday

April 17, 2015

April 17, 2015

Posted by **Anonymous** on Thursday, February 24, 2011 at 4:15pm.

above the population mean (in %) is a sample mean score of 12

- statistics -
**PsyDAG**, Friday, February 25, 2011 at 2:00pmZ = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√(n-1)

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 that Z score.

**Answer this Question**

**Related Questions**

Math- Statistics - A random sample of size 36 is to be selected from a ...

John jay college - A random sample of n = 9 scores is obtained from a population...

Math - I need help with this these two problem PLEASE!!! For a population with ...

John jay college - A random sample of n = 9 scores is obtained from a population...

Math (Statistic) - Considered the sampling distribution of a sample mean ...

Statistics - The estimated standard error, sM, provides a measure of the average...

statistics - random sample of n = 16 scores is selected from a normal ...

Statistics - Step 2 - Transform the sample mean into a z-score (p. 133) x̅...

Math - Q1. A population has a mean of µ = 80 with σ = 20. a. If a single ...

probability and statistics - a population forms a normal distribution with a ...