Undergraduate students

  • This dataset comes from a study of 100 female mice treated with one of 3 doses of a drug, and then impregnated by untreated males. The fetuses were examined for skeletal malformations. Questions from this study refer to the relationship between affected fetuses and dosage. A text file version of the data is found in the relation link.
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  • This dataset comes from a study of rodents treated with one of 5 or 6 doses of a drug. The proportion of animals that died were recorded. Questions from this study refer to estimating the lethal dosage. A text file version of the data is found in the relation link.
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  • This dataset comes from a study of 23 healthy male subjects in a five period crossover study. Each subject followed a randomly allocated sequence of five treatments. Blood samples were collected and serum ethanol levels were recorded. Questions from this study refer to the drug-alcohol interaction. A text file version of the data is found in the relation link.
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  • This dataset comes from a study of female rats allocated to 1 of 4 doses of a drug, and then impregnated by similarly treated males. The pups were tested for developmental signs. Questions from this study refer to the relationship between pup response and dosage. A text file version of the data is found in the relation link.
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  • 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 resource explains margin of error using an example on presidential popularity polls.
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  • This resource gives 3 questions readers should ask when presented with data and why to ask them: Where did the data come from? Have the data been peer-reviewed? How were the data collected? This page also describes why readers should: be skeptical when dealing with comparisons, and be aware of numbers taken out of context.

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  • This resource discusses sample sizes and how they are chosen.
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