Comparing Standard Error of the Means
Prepared by Scott Colwell

This Demonstration shows three sampling distributions of means. You can change the standard error of the mean for each distribution. By doing so you can see how a sampling distribution becomes narrower and taller as the standard error decreases. Remember that the standard error decreases as sample size increases, so think of a decreasing standard error as an increasing function of sample size.

Download the CDF file to view the simulation using the free Wolfram CDF player.