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  • Dataset: Food Interaction Study

    This dataset comes from a study of 8 healthy males randomly assigned to a two-period crossover design, in which they either fasted and then ate, or ate and then fasted. They were given one dose of a drug, blood samples were collected and data on plasma levels were collected. Questions from this study refer to the absorption of the drug. A text file version of the data is found in the relation link.

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  • Dataset: Pharmacokinetic Study of Carbidopa

    This dataset comes from a study of 12 healthy males randomly assigned to a three-period crossover design, in which were given one of 3 doses of a drug. Blood samples were collected at specified time intervals, and data on plasma levels were collected. Questions from this study refer to the relationship between dosage and plasma levels. A text file version of the data is found in the relation link.

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  • Dataset: Method Comparison Study

    This dataset comes from a study of 48 hypertensive patients given one of 3 doses of one drug and one dose of another drug. Questions from this study refer to associations and relationships between the drugs. A text file version of the data is found in the relation link.

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  • **Statistics Every Writer Should Know

    This site provides an introduction to basic statistical concepts for journalists and writers with little math background. Key Words: Mean; Median; Percent Changes; Per capita; Rates; Standard Deviation; Normal Distribution; Margin of Error; Confidence Interval; Data Analysis; Sample Sizes; Statistical Tests; Student's T.

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  • Mean

    This resource defines and explains the arithmetic mean using an example on employee salaries.

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  • Median

    This resource defines and explains the median using an example on employee salaries.

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  • Percent Change

    This resource defines and explains percent changes using an example on city murder rates.

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  • Per Capita

    This resource defines and explains per capita rates using an example on city murder rates.

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  • Margin of Error

    This resource explains margin of error using an example on presidential popularity polls.

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  • Sample Sizes

    This resource discusses sample sizes and how they are chosen.

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