This dataset was originally presented in Table 5.1 of Williams (1959) where two non-nested linear regression models were considered.
A data frame with 42 rows and three variables:
Maximum compression strength (response) in pounds per square inch
Density (predictor 1) in pounds per cubic foot
Adjusted density (predictor 2) in pounds per cubic foot
E. Williams. Regression analysis. Wiley, 1959.
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