Experiment on effects of diets on weight gain of rats
A data frame with 60 observations on the following 3 variables.
Weight gain (in grams per week)
Level of protein (
Source of protein (
Data from this experiment compared weight gain for 60 baby rats that were fed different diets. Half of the rats had low-protein diets (Lo) and the rest had high-protein (Hi). The source of protein was either beef, cereal, or pork.
C. P. Wilsie, Iowa State College Agricultural Station (1944) via Snedecor and Cochran
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