Datasets for Statistical Analysis

Insecticide doses and tobacco budworm

Keywords:

dose

Categories:

generalized linear models;
biology

Description:

The data concern the tobacco budworm Heliothis virescens and the doses of pyrethroid trans-cypermethrin (to which the moths were beginning to show resistance). Twenty male and twenty female moths were exposed at each of six doses of the pyrethroid, and the number that were killed recorded.

There are 12 observations on four variables.

Variables:

Killed	The number of budworms killed at each dose.
Number	The number of budworms studied at each dose.
Gender	The gender of the budworms.
Dose	The dose of pyrethroid trans-cypermethrin (in micrograms)

Data Quality:

There are no missing values.

Source:

The data are given by Venables, W. N. and Ripley, B. D. (1997). Modern Applied Statistics with S-PLUS, second edition, Springer-Verlag: New York (p 230) and Collett, D. (1991). Modelling Binary Data. Chapman and Hall: London.

Notes:

References: