Datasets for Statistical Analysis Home Techniques Index Application Index

Datasets for Statistical Analysis

Back to Datasets home

Access data file
Keywords:
insecticide
Categories:
biology;
generalized linear models
Description:
Fifty insects were exposed to various deposits of insecticides. The proportions of the insects killed after six days exposure were recorded.

There are six doses of poison for three insecticides. T

Variables:
Killed The number of insects killed at each poison level for the insecticide
Number The number of insects exposed to each poison level for the insecticide
Insecticide The insecticide used; one of 1, 2 or 3
Deposit The amount of deposit (insecticide) used, in milligrams
Data Quality:
There are no missing values.
Source:
Hewlett, P. S. and Plackett, T. J. (1950). `Statistical aspects of the independent joint action of poisons, particularly insecticides. II Examination of data for agreement with hypothesis' in Annals of Applied Biology, 37, 527--552.
Notes:
References:
Also given in Krzanowski, Wotjek J. (1998). An Introduction to Statistical Modelling, Arnold: London.