Purpose:  The purpose of this program is to simulate the tossing of a coin or coins and to display the results in the form of a graph with the probability…
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Purpose:  The purpose of this program is to simulate the tossing of a coin.  The proportion of heads is graphed against the number of trials, the number of which is…
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Purpose:  The of this program is to show how changing one (point or value) in a sample affects the various statistics that describe the sample.  This program can be used…
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Purpose:  The purpose of this program is to calculate the odds ratio given the probabilities supplied by the user.  The probability of Y = 1 for up to four levels…
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Purpose:  The purpose of these four programs is to display the critical values from the chi-squared, f-, t- and z-distributions.  The critical values are given for a variety of alpha…
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Purpose:  The purpose of this program is to illustrate how the power changes as the mean for the alternative hypothesis changes.  This is done by graphing the distributions for the…
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Purpose:  The purpose of this program is to show curves representing the distribution of the null and alternative hypotheses and illustrating the rejection region and the area representing power.  The…
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Purpose:  The regpt command is a teaching tool for showing the influence of one point in a regression analysis, allowing you to see how the point influences the regression line,…
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Purpose:  The purpose of this program is to facilitate the comparison between a standard normal distribution and the sampling distribution of the mean for the sample size specified by the…
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Purpose:  The purpose of this program is to allow a comparison between a univariate t-test and a multivariate t-squared test.  The program creates a dataset with two variables, X and…
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