Did I Get This – Using the Sampling Distribution of x-bar
Scores on the math portion of the SAT (SAT-M) in a recent year have followed a normal distribution with mean μ = mu = 507 and standard deviation σ = sigma = 111.
http://phhp-faculty-cantrell.sites.medinfo.ufl.edu/files/2012/12/DIG_09010_152.swf
This document is linked from Sampling Distributions.