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Hypothesis Tests >> Illustrate introductory concepts or steps of testing a hypothesis


APPLETSOURCEDESCRIPTION
The Reasoning of a Statistical TestW.H. Freeman & Co.Illustrates concepts of hypothesis tests and making decisions based on sample data by generating samples of basketball players shooting free throws (with graphics) and allowing user to try to ascertain veracity of claims about true free throw percentages.  more
Decisions Based on P-Values and Significance LevelsWolfram Demonstrations ProjectIllustrates relationship between alpha and p-value by showing how changes in values affect rejection decision. Requires download of Mathematica Player as well as demo itself, good for classroom demonstration.  more
Hypothesis TestingSABLE (Statistics Activity Based Learning Environment)Expository information on hypothesis testing, along with activities to reinforce concepts, including: making decisions about populations based on sample data, observing sampling distributions from a small finite population and changing sample sizes and observing effects, determining statistical significance and rejection decisions based on summary data and p-values for various examples.  more
T DistributionsSABLE (Statistics Activity Based Learning Environment)Expository information on T distributions, along with activities to reinforce concepts, including comparing t distributions to the standard normal, finding probabilities and critical values, and making rejection decisions for both single population and two population tests.  more
Hypothesis Testing AppletKerbaughWalks user through a hypothesis test step by step, from specifying hypotheses and significance level to entering data or sample statistics and selecting the correct rejection criteria and observing p-value and results of the test.  more
Hypothesis Tests for the Population MeanEconomics Dept., Univ. of Michigan-DearbornWalks student through process of testing a hypothesis about a mean using both the critical value and p-value approach, user can change sample statistics and alpha but can only test that the mean is equal to 10. Also includes explanations.  more
Hypothesis Tests about a Population MeanWolfram Demonstrations ProjectFor either one or two tailed tests, allows user to adjust sample size, hypothesized mean, population variance and significance level to see the effect on the rejection region, p-value and decision. Requires download of Mathematica Player as well as demo itself, good for classroom demonstration.  more
Student's t-test: Comparison of two meansUniv. of Athens, Department of ChemistyExpository material along with applet that allows user to conduct a t-test for two means, users enter demo data by clicking points on two number lines or can enter in values, calculates sample statistics, test statistic and p-value, and interprets the result.  more

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