These applets, presented by Virginia Tech's Department of Statistics, address the notion of "power." Users can perform one or two tailed tests for proportions or means for one or two samples. Set the parameters and...
This resource, created by author Will G. Hopkins, defines what a p-value is, why .05 is significant, and when to use it. It also covers related topics such as one-tailed/two-tailed tests and hypothesis testing. Overall...
This site, created by authors Valerie Eastor and John H. McColl, lists definitions of key terms related to experimental design and ANOVA. Some of these include factorial, blocking, interaction, experimental design,...
This activity has two major goals: (1) to give students experience with a variety of histograms of data, and (2) to help them better recognize different shapes and characteristics. Too often students only see one or two...
This applet demonstrates the partitioning of sums of squares in analysis of variance (ANOVA). It includes some sample values and allows the user to make adjustments, which then shows the new values in the ANOVA table. ...
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