This group activity illustrates the concepts of size and power of a test through simulation. Students simulate binomial data by repeatedly rolling a ten-sided die, and they use their simulated data to estimate the size...

The Caesar Shift is a translation of the alphabet; for example, a five-letter shift would code the letter a as f, b as g, ... z as e. We describe a five-step process for decoding an encrypted message. First, groups of...

Dmitry Panchenko of the Massachusetts Institute of Technology is an undergraduate course in Statistics for Applications. The site features lecture notes, a syllabus and assignments. Course topics include hypothesis...

Instructors at the Pensacola Junior College use this course to explain how social scientists use statistics to understand and explain theoretical concepts. Sociologists provide a cultural context for data and then...

This module, created by Don Johnson of Rice University, provides an explanation and an example of the likelihood ratio test. Topics include: decision regions, Bayes' decision criterion, Bayes' cost, and likelihood...