Learn by Doing – Using the Sampling Distribution of x-bar #2
The annual salary of teachers in a certain state X has a mean of $54,000 and standard deviation of σ = $5,000.
http://phhp-faculty-cantrell.sites.medinfo.ufl.edu/files/2012/12/LBD_09013_152.swf
http://phhp-faculty-cantrell.sites.medinfo.ufl.edu/files/2012/12/LBD_09014_152.swf
This document is linked from Sampling Distributions.