Simulation

  • This dataset comes from a study of 16 healthy subjects allocated to 1 of 4 doses of a drug. Blood samples were taken and plasma levels were recorded. Questions from this study refer to the relationship between plasma level and dose. A text file version of the data is found in the relation link.
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  • This dataset comes from a study of 24 healthy subjects allocated to 1 of 4 doses of a drug. Blood samples were taken and plasma levels were recorded. Questions from this study refer to the relationship between plasma level and dose. A text file version of the data is found in the relation link.
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  • This dataset comes from a study of 14 healthy subjects given one dose of a drug for seven days. Blood samples were taken before and after treatment, and plasma levels were recorded. Questions from this study refer to the increase in plasma level after treatment. A text file version of the data is found in the relation link.
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  • This dataset comes from two studies, one of 16 healthy young subjects and another of 14 healthy elderly subjects, each given a drug in two treatment periods. Blood samples were taken, and plasma levels were recorded. Questions from this study refer to whether age or gender affects plasma level. A text file version of the data is found in the relation link.
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  • This day may possibly be my last: but the laws of probability, so true in general, so fallacious in particular, still allow about fifteen years. A quote of English historian Edward Gibbon (1737 - 1794). The quote was written in 1787 and was published after his death in "Miscellaneous works of Edward Gibbon, with memoirs of his life and writings composed by himself" edited by Lord John Seffield, 1796
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  • This applet allows students to explore three methods for measuring "goodness of fit" of a linear model. Users can manipulate both the data and the regression line to see changes in the square error, the absolute error, and the shortest distance from the data point to the regression line.
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  • This page calculates probabilities for a Poisson distribution.

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  • This lesson poses a series of questions designed to challenge students' possible misconceptions of statistical inference and hypothesis testing. The lesson uses the statistical software, Fathom, and three datasets with information on the number of chips per canister distributed by a snack maker. The data can found at the relation address below.
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  • This page provides a table for selecting an appropriate statistical method based on type of data and what information is desired from the data. It also compares parametric and nonparametric tests, one-sided and two-sided p-values, paired and unpaired tests, Fisher's test and the Chi-square test, and regression and correlation. It comes from Chapter 37 of the textbook, "Intuitive Biostatistics".
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  • This module discusses the probability of an event and relative frequency. The applet shows how empirical probability converges to theoretical probability as the sample size increases. The follow-up example includes an applet that simulates drawing differently colored balls from an urn.
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