Rat: Survival times of 20 rats exposed to high levels of radiation

In BSDA: Basic Statistics and Data Analysis

Survival times of 20 rats exposed to high levels of radiation

Description

Data for Exercise 1.52, 1.76, 5.62, and 6.44

Usage

Rat

Format

A data frame/tibble with 20 observations on one variable

survival_time

survival time in weeks for rats exposed to a high level of radiation

Source

J. Lawless, Statistical Models and Methods for Lifetime Data (New York: Wiley, 1982).

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples

hist(Rat$survival_time)
qqnorm(Rat$survival_time)
qqline(Rat$survival_time)
summary(Rat$survival_time)
t.test(Rat$survival_time)
t.test(Rat$survival_time, mu = 100, alternative = "greater")

BSDA documentation built on Sept. 19, 2023, 1:08 a.m.