Following a successful test of an anti-ballistic missile (ABM) in July 1999,
many prominent U.S. politicians called for the early deployment of a full ABM
system. The scientific community was less enthusiastic about the efficacy of
such a system. This data set contains the success or failure of ABM tests
between March 1983 and May 1995. Do these data suggest any
improvement in ABM
test success probability over time?
Usage
ex2019
Arguments
Format
A data frame with 17 observations on the following 3 variables.
Date
date of an ABM test
Months
number of months after March 1983
Result
a factor with levels "Failure" and
"Success"
References
Lewis, G. N., Postol, T. A. and Pike, J. (1999) Why National Missile Defense
Won't Work, Scientific American281(2): 36--41.