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Dynamic Visualization
of
Statistical Concepts
Overview
The Penn State Department of Statistics is developing a collection of Toolbook
modules that illustrate elementary statistical concepts. The modules
encourage the interactive exploration of concepts. The modules can be used
either in a lecture setting or a group lab setting. Screens are designed
so that they can be seen in a large classroom equipped with a computer projection
system. Present drafts of several modules can be seen using links
below.
Required Plug-in
The Neuron plug-in from Asymetrix is needed to view the modules. The
Penn State CAC network already has this plug-in so Penn State CAC users
won't have to download the plug-in. If you don't have the plug-in, here's
a link to Download
Neuron. After the plug-in is installed, the modules
can be run using the links below.
Modules
- Power.
A demonstration of how power is affected by sample size, significance
level, and the difference between the "actual" mean and the null mean.
- Normal Curve
Models. A module illustrating central areas and percentiles
for normal curves. Streaks and Randomness. An examination
of the length of the longest run of consecutive identical results in
25 flips of a coin.
- Comparisons
and P-values. An introduction to the ideas of inference. A
two sample permutation test is used to illustrate p value and sampling
distribution
- A Roulette
Simulation A look at repeated plays of bets on
a specific number as well as bets on a color.
- Streaks and
Randomness. An examination of the length of the longest
run of consecutive identical results in 25 flips of a
- coin.
- The Birthday
Matching Problem. A simulation of the birthday
matching problem.
- A simple
sampler for coin flips and die tosses. Primitive
sampler for looking at results from either 10 or 100 flips of a coin
as well as ten tosses of a fair die.
The modules were programmed and designed by Bob Heckard. The ideas
were generated in regular meetings among PSU department members Bill Harkness,
Bob Heckard, Tom Hettmansperger, Jim Rosenberger, and Tom Ryan.
This page prepared by Bob Heckard , rho@stat.psu.edu
Last updated August 6, 2000
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