ex1518: Effectiveness of Measles Vaccine
In Sleuth3: Data Sets from Ramsey and Schafer's "Statistical Sleuth (3rd Ed)"

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The data are the number of measles cases reported in the United States for each year from 1950 to 2008. A goal is to explore the effect of the introduction of the measles vaccine in 1963 on the series mean.

ex1518

A data frame with 59 observations on the following 3 variables.

Year: year
Cases: number of measles cases
Vaccine: a factor with levels "no" and "yes" indicating whether the measles vaccine had been licensed or not (yes for every year starting with 1963)

Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A Course in Methods of Data Analysis (3rd ed), Cengage Learning.

Center for Disease Control,
http://www.cdc.gov/vaccines/pubs/pinkbook/downloads/appendices/G/cases-deaths.pdf retrieved on July 23, 2009

1	str(ex1518)

Sleuth3 documentation built on May 2, 2019, 6:41 a.m.

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