Topic: Medical

Methods: Nested Model, Interaction, Experimental Design,
Topics: Medical,
Datafile Name: Heart Valves
Abstract:

Artificial heart valves were tested in a mechanical apparatus which measured and controlled the pulse rate and the blood pressure of the heart. The purpose of the experiment was to determine the best valve type of the four studied. The maximum flow gradient (in mm Hg) is the dependent variable fo...

Methods: Regression, Outlier, Scatterplot,
Topics: Health, Medical,
Datafile Name: Breast Cancer
Abstract:

In a 1965 report, Lea discussed the relationship between mean annual temperature and the mortality rate for a type of breast cancer in women. The subjects were residents of certain regions of Great Britain, Norway, and Sweden. A simple regression of mortality index on temperature shows a strong p...

Methods: Pooled T-Test, Two Sample T-Test, ANOVA,
Topics: Health, Medical,
Datafile Name: Calcium
Abstract:

Does increasing calcium intake reduce blood pressure? Observational studies suggest that there is a link, and that it is strongest in African-American men. Twenty-one African-American men participated in an experiment to test this hypothesis. Ten of the men took a calcium supplement for 12 weeks ...

Methods: ANOVA, Boxplot, Transformation,
Topics: Medical,
Datafile Name: Cancer Survival
Abstract:

Patients with advanced cancers of the stomach, bronchus, colon, ovary or breast were treated with ascorbate. The purpose of the study was to determine if patient survival differed with respect to the organ affected by the cancer.

A one-way ANOVA with Organ as the discrete factor and Sur...

Methods: Two Sample T-Test, Boxplot,
Topics: Medical,
Datafile Name: Cholesterol and Smoking
Abstract:

A study examining the health risks of smoking measured the cholesterol levels of people who had smoked for at least 25 years and people of similar ages who had smoked for no more than 5 years and then stopped.

...
Methods: Proportion,
Topics: Education, Health, Medical,
Datafile Name: Nurses
Abstract:

Friedland, Joffe, Moore, et al. (1992) conducted an experiment to see how an educational program on the importance of using gloves affected the rate of glove use by a group of nurses in an inner-city pediatric hospital emergency department. The participants in the study were all 23 members of the...

Methods: T-test, Outlier, Boxplot, Mann Whitney U Test, Summary Statistics,
Topics: Health, Medical,
Datafile Name: Nursing Home Data
Abstract:

Acorn is the acronym for Association of Community Organizations for Reform Now.
These data were presented by Acorn to a Joint Congressional Hearing on discri-
mination in lending.  Acorn concluded that "banks generally have exhibited a per-
vasive pattern of lending...

Methods: Outlier, Regression, Residuals, Transformation, Nonlinear Regression, Dummy Variable,
Topics: Health, Medical, Social Science,
Datafile Name: Smoking and Cancer
Abstract:

Nevada and the District of Columbia are outliers in the distribution of cigarette consumption (sale) per capita by states in 1960. How the most extreme observa- tion, Nevada, should be handled in the regressions of various cancer death rates on cigarette consumption, however, varies. In addition,...

Methods: Correlation, Regression, Scatterplot,
Topics: Health, Medical,
Datafile Name: Smoking and Cancer
Abstract:

Government statisticians in England conducted a study of the relationship between smoking and lung cancer. The data concern 25 occupational groups and are condensed from data on thousands of individual men. The explanatory variable is the number of cigarettes smoked per day by men in each occupat...

Methods: Regression, T-test, Time Series,
Topics: Government, Medical, Miscellaneous, Sports,
Datafile Name: Time Series
Abstract:

The datafile includes four series which can be described as time series exper- iments. At some point in the time series, new conditions are introduced. The question then is raised whether the sample of observations after the change comes from a population with a different mean than the sample of ...

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