Comparing Standard Errors of the Means

Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
This Demonstration shows three sampling distributions of means and their standard errors. The standard error of the mean is calculated as the standard deviation divided by the square root of the sample size. By changing the sample size you can see how the standard error of the mean changes. Notice how a sampling distribution becomes narrower and taller as the standard error decreases and vice versa. Change the standard deviation (which by default is set to 3) to see how that influences the sampling distribution of the means.
Contributed by: Scott R. Colwell (August 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
detailSectionParagraphPermanent Citation
"Comparing Standard Errors of the Means"
http://demonstrations.wolfram.com/ComparingStandardErrorsOfTheMeans/
Wolfram Demonstrations Project
Published: August 11 2011