Statistical Inference & Techniques

  • This module discusses the history and importance of the normal distribution, as well as normal moments, the standard normal distribution, normal probabilities, Z-Scores, and normal quantiles. The applet allows users to compute normal probabilities and quantiles. Three follow-up examples cover cholesterol, male heights, and mean temperatures for various cities in South Carolina.
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  • This dataset comes from a study on rats swimming in a T-shaped maze. Rats were given 4 doses of a drug, and their resulting pups swam the maze until they successfully escaped it 3 consecutive times. Questions from this study refer to the dosage of the drug, the number of swims until 3 consecutive successful escapes, and gender differences. A text file version of the data is found in the relation link.
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  • This dataset comes from a study on dogs 4 doses of a drug. Data on the alkaline phosphatase levels in their blood was collected throughout the experiment. Questions from this study refer to the relationship between dosage of the drug and alkaline blood levels. A text file version of the data is found in the relation link.
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  • This dataset comes from a study of 7 healthy males given a topical medication. Blood samples were collected at specified time intervals, and data on isomer concentrations were collected. Questions from this study refer to the relationship between time and concentration of the isomer. A text file version of the data is found in the relation link.
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  • 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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  • 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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  • This dataset comes from a study of 90 rats given one of 3 doses of a drug. At sacrifice, data on body weight and the weights of various organs were collected. Questions from this study refer to the relationship between dosage and body and organ weight. A text file version of the data is found in the relation link.
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  • This dataset comes from a study of rats given one of 4 doses of a drug. The resulting pups were tested for developmental signs. Questions from this study refer to the relationship between dosage and developmental response. A text file version of the data is found in the relation link.
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  • This dataset comes from a study of diabetic patients randomly assigned to a two-period crossover design. Patients were given 1 of 2 drug sequences (EN, NE) in each period and blood pressure was recorded. Questions from this study refer to the ability of the drugs to lower blood pressure. A text file version of the data is found in the relation link.
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  • This dataset comes from a study of 8 healthy patients randomly assigned to a two-period crossover design. Patients were given 1 of 2 drug sequences and data on blood plasma levels wer recorded. Questions from this study refer how the drugs affect plasma levels. A text file version of the data is found in the relation link.
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