Java Applets for Power and Sample Size
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|Russ Lenth, The University of Iowa|
|Graphical interfaces for studying the power of statistical tests: confidence intervals for one proportion or one mean, tests of one proportion or comparing two proportions, one-sample t-test (or paired t), two-sample t-test (pooled or Satterthwaite), and ANOVA test. Each includes sliders (convertible to number-entry fields) for varying parameters, and a simple provision for graphing one variable against another.|
|Levels:||High School (9-12), College|
|Resource Types:||Web Interactive/Java|
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