The work of Royall and Herson (1973a, 1973b), ensuring the robustness of the standard ratio estimator against polynomial superpopulation models by choosing balanced samples, is extended to a more ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Julie Young is an experienced financial writer and editor. She specializes in financial analysis in capital planning and investment management. Dr. JeFreda R. Brown is a financial consultant, ...

Let’s imagine that we are studying a species of beetle. The beetles come in many different colors, and we want to know how common the orange (O) coloring is in this population. This population of ...

Human interactions play an important role in determining the potential transmission routes of infectious diseases and other contagion phenomena 1. Their measure and characterization represent an ...

Population sampling of five species of desert tenebrionid beetles, Eleodes armata, Centrioptera muricata, Centrioptera variolosa, Cryptoglossa verrucosa and Pelecyphorus adversus, was conducted using ...

WATAUGA, Tenn. (WJHL) – The Tennessee Wildlife Resources Agency (TWRA) conducted its annual sampling of trout populations in the Watauga River. This is the first sampling of those tailwaters after ...