Data on Infant-Mortality
Leinhardt data frame has 105 rows and 4 columns.
The observations are nations of the world around 1970.
The infant-mortality rate for Jamaica is misprinted in Leinhardt and Wasserman; the correct value is given here. Some of the values given in Leinhardt and Wasserman do not appear in the original New York Times table.
Leinhardt, S. and Wasserman, S. S. (1979) Exploratory data analysis: An introduction to selected methods. In Schuessler, K. (Ed.) Sociological Methodology 1979 Jossey-Bass. The New York Times, 28 September 1975, p. E-3, Table 3.
Fox, J. (1997) Applied Regression, Linear Models, and Related Methods. Sage.