Dynamic visual displays

The following Toolbook modules encourage the interactive exploration of the concepts of elementary statistics.   Because the screens are designed for use in a large classroom equipped with a computer projection system, the modules can be used either in a lecture or a group lab setting.  

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.  Requires Neuron plug-in.

• Normal distribution  Dynamically illustrates central areas and percentiles of the normal distribution.
• Two-sample comparisons and p-values  Introduces sampling distribution and p-values in the context of a two-sample permutation test.
• Power   Demonstrates how power is affected by sample size, significance level, and the difference between the "actual" mean and the null mean.
• A roulette simulation  Looks at repeated plays of bets on a specific number as well as bets on a color.
• Streaks and coincidences  Examines the distribution of the length of the longest run of consecutive identical results in 25 flips of a coin.
• A simpler sampler for coin flips and die tosses  A 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 birthday problem    Simulates the matching birthday problem.