Data contains yearly skin cancer rates (per 100,000 people) in
Connecticut from 1938 to 1972 with a code indicating those years that
came two years after higher than average sunspot activity and those
years that came two years after lower than average sunspot activity.
Usage
ex0323
Arguments
Format
A data frame with 35 observations on the following 3 variables.
Year
year
CancerRate
skin cancer rate per 100,000 people
SunspotActivity
a factor with levels "High" and
"Low"
References
Andrews, D.F. and Herzberg, A.M. (1985). Data: A Collection of
Problems from many Fields for the Student and Research Worker,
Springer-Verlag.