Some connections are established, by elementary and intuitive paths, among the following statistical techniques: Shewhart control charts, analysis of variance, and chi-square tests.

Signals arising in the natural world are highly structured. To an observer with knowledge of these structures, the signals are redundant, because one spatial or temporal portion of a given signal may ...

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 ...