apple data frame provides the number of apples (in 100s) on
18 different apple trees. For 12 trees, the percentage of apples with
worms (x 100) is also given.
This data frame contains the following columns:
hundreds of apples on the tree.
percentage (x100) of apples harboring worms.
These data constitute Table 6.1 in Little and Rubin (1987), adapted from Table 6.9.1 of Snedecor and Cochran (1967).
Little, R. J. A., and Rubin, D. B. (1987) Statistical Analysis with Missing Data. New York: Wiley.
Snedecor, G. W., and Cochran, W. G. (1967) Statistical Methods, 6th ed. Ames: Iowa State University Press.
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