Support for the
Java 2 runtime environment (version 1.4 or later). Click on the icon to download the appropriate
plug-in.Object Library > Applets > Sample Mean Experiment
The experiment consists of selecting a random sample of size n from a specified distribution. The sample mean and standard deviation are recorded in the last table on each update. The sample size n can be varied with a scroll bar. The sampling distribution can be selected from the list box; the options are the normal, gamma, binomial, and Poisson. For each distribution, the appropriate parameters can be varied with scroll bars. The distribution density and moments are shown in blue in the first graph and the moments are recorded in the first table. On each update, the sample density and moments are shown in red the first graph and the sample moments are recorded in the first table. The sample values are recorded in the second table. The density and moments of the sample mean M are shown in blue in the second graph and the moments are recorded in third table. On each update, the empirical density and moments are shown in red in the second graph and the moments are recorded in the third table. The sample mean M and standard deviation S are recorded in the last table on each update.
This applet illustrates the topics and concepts in the list below. Click on the links to learn more about the mathematical theory.
Click on the link below to download the Java archive file:
To add the applet to your web page, insert the following in the html file, at the point where you want the applet to appear:
<applet code="edu.uah.math.experiments.SampleMeanExperiment.class"
archive="SampleMeanExperiment.jar" width="650" height="400"></applet>
The jar file and the html file must be in the same folder.
This width and height dimensions are simply suggestions and can be varied. Generally, components such as graphs and tables expand and contract proportionally, while components such as buttons, scrollbars, dice, and coins are fixed in size.
Support for the
Java 2 runtime environment (version 1.4 or later). Click on the icon to download the appropriate
plug-in.Copyright © 2001-2003 Kyle Siegrist, Dawn Duehring
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. See the GNU General Public License for more details.
If you are interested in the Java source code or the Java documentation and object model for this applet, please visit SampleMeanExperiment in the Object section of the Library.