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 Normal Approximation to the Binomial Distribution This demonstration, by David M. Lane of Rice University, allows you to view the binomial distribution and the normal approximation to it as a function of the probability of a success on a given trial and the number of trials. It can be used to compute binomial probabilities and normal approximations of those probabilities. http://www.ruf.rice.edu/~lane/stat_sim/normal_approx/index.h...
 Chi Square Test of Deviations from Expected Frequencies The applet allows users to sample from a normal distribution or from a uniform distribution. It shows the expected values and the observed values and computes the deviation. Then, a chi-square test shows if the deviations are significant for both the normal and uniform distributions. http://www.ruf.rice.edu/~lane/stat_sim/chisq_theor/index.htm...
 2 x 2 Contingency Tables Created by David Lane of Rice University, this applet simulates experiments using 2 x 2 contingency tables. You specify the population proportions and the sample size and examine the effects on the probability of rejecting the null hypothesis. The author provides instructions and then five different exercises to practice these concepts. Overall, this is a nice interactive resource that allows... http://www.ruf.rice.edu/~lane/stat_sim/contingency/index.htm...
 Restriction of Range This applet, by David M. Lane of Rice University, shows how the correlation between two variables is affected by the range of the variable plotted on the X-axis. Exercises and definitions to key terms are given for students to fully explore and understand correlation and restriction of range. http://www.ruf.rice.edu/~lane/stat_sim/restricted_range/inde...
 Natural Language Interface This case study, by David M. Lane of Rice University, assesses the question, "Is it easier to learn to use computer software that uses natural language commands?" Main concepts are analysis of covariance, adjusted means, and boxplots. The experimental design, descriptive statistics, inferential statistics, and raw data are all given. http://www.ruf.rice.edu/~lane/case_studies/interface/index.h...
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