This is a preview. Log in through your library . Abstract This note explores variance estimation of a combined ratio estimator from a purely model-based viewpoint. It shows that given a sample ...

Estimating number of prey killed by carnivores such as wolves (Canis lupus) per unit time, or kill rate, is important for the conservation and management of carnivores and their prey. We reviewed ...

The CMH option in the TABLES statement gives a stratified statistical analysis of the relationship between C and D, after controlling for A and B. The stratified analysis provides a way to adjust for ...