USING WEB APPLETS TO ASSIST STATISTICS INSTRUCTION

Presented at

1999 Joint Mathematics Meetings San Antonio, Texas January 15, 1999 Sponsored by Mathematical Association of America

Getting started:

Browse through the applets and sites listed below.
Set up a course webpage with links to favorite applets. It doesn't need to be fancy. Start off with just a few links and add more as you go along.

Quick demonstrations:

Histogram - check the effect of bin size on Old Faithful data, Webster West - S. Carolina.
Regression - see the effects of adding an outlier -Webster West - S. Carolina.
Power of a Hypothesis Test - graphical look at power for a test of a mean -Todd Ogden - S. Carolina.
Scatterplot Changes with Correlation - another way of seeing how scatterplot shape and correlation are related. A non-java applet by Juha Puranen at the Univ. Of Helsknki.

Student activities:

Guessing Correlations - a neat "game" to show the relationship between correlations and scatterplots - part of the CUWU Statistical Program at Illinois-Champaign-Urbana.
Let's Make a Deal - a simulation of the infamous Monty Hall- Three Doors problem -Webster West - S. Carolina.
Drawing a Regression Line by "Eye" - draw a line on the scatterplot. MSE error is computed. you can also guess the correlation and see the least squares line - part of the Rice Virtual lab in Statistics.

Websites with links to lots of applets:

Globally Accessible Statistical Procedures (GASP) collected at the Univ. of South Carolina.
Interesting JAVA Applets compiled at Duke University.
The CUWU Statistics Program by John Marden at Champaign-Urbana Web University.
Rice Virtual Lab in Statistics developed by David Lane and others at Rice University.
Virtual Laboratories in Probability and Statistics - good site for probability simulations - Kyle Siegrist at Alabama-Huntsville.
SurfStat JAVA Applet Hotlist - part of the on-line textbook at University of Newcastle.

On-line stat packages:

Statlets - a multi-featured JAVA-based statistics package, with free WWW access for small datasets (10 variables x 100 cases). Produced by NWP Associates, Inc.
WebStat - created by Webster West at the University of South Carolina.
Statiscope - a one page univariate stat pakage done by Mikael Bonnier - Lund, Sweden.