Data from a stratified random sample of size 300 from the U.S. 1992 Census of Agriculture.
agstratData frame with the following 17 variables:
county name
state abbreviation
number of acres devoted to farms, 1992
number of acres devoted to farms, 1987
number of acres devoted to farms, 1982
number of farms, 1992
number of farms, 1987
number of farms, 1982
number of farms with 1000 acres or more, 1992
number of farms with 1000 acres or more, 1987
number of farms with 1000 acres or more, 1982
number of farms with 9 acres or fewer, 1992
number of farms with 9 acres or fewer, 1987
number of farms with 9 acres or fewer, 1982
factor with levels S (south), W (west),
NC (north central), NE (northeast)
random numbers used to select sample in each stratum
sampling weighs for each county in sample
Lohr (1999). Sampling: Design and Analysis, Duxbury, p. TODO and 437.