chandwich (version 1.1.2)

rats: Rat tumor data

Description

Tumor incidence in 71 groups of rate from Tarone (1982). The matrix rat has 71 rows and 2 columns. Each row relates to a different group of rats. The first column (y) contains the number of rats with tumors. The second column (n) contains the total number of rats.

Usage

rats

Arguments

Format

A matrix with 71 rows and 2 columns.

References

Tarone, R. E. (1982) The use of historical information in testing for a trend in proportions. Biometrics, 38, 215-220. https://www.jstor.org/stable/2530304