Description Usage Format Source References Examples

The data are survival times (in days) of guinea pigs that were randomly assigned either to a control group or to a treatment group that received a dose of tubercle bacilli.

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A data frame with 122 observations on the following 2 variables.

`Lifetime`

survival time of guinea pig (in days)

`Group`

a factor with levels

`"bacilli"`

and`"control"`

, indicating the group to which the guinea pig was assigned

Ramsey, F.L. and Schafer, D.W. (2002). *The Statistical Sleuth: A
Course in Methods of Data Analysis (2nd ed)*, Duxbury.

Doksum, K. (1974). Empirical Probability Plots and Statistical
Inference for Nonlinear Models in the Two–sample Case, *Annals
of Statistics* **2**: 267–277.

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