This site offers an introductory course (as a MOOC) on the estimation of measurement uncertainty specifically related to chemical analysis (analytical chemistry). The course gives the main concepts and mathematical apparatus of measurement uncertainty estimation and introduces two principal approaches to measurement uncertainty estimation – the ISO GUM modeling approach (aa “bottom-up” approach) and the single-lab…

A complete textbook for Quantitative Analysis is freely downloadable. Teach yourself Analytical Chemistry, or be part of a class on the subject.
The website is available here .

This site provides an introduction to principal component analysis, beginning with a glossary of important terms before taking the reader through the process of completing a principal component analysis. One limitation to the site is its reliance on Minitab and SPSS for calculations. Users without access to these programs can reproduce the calculations using other software…

Means, standard deviation, and deciding if two results are different at some level of statistical significance is the basis for analytical decision making. This module teaches students how to use t-tests, Q-tests, and to tell when differences are statistically real.
The website is available here .

This site provides a comprehensive electronic handbook on statistics for scientists and engineers. Topics include graphical approaches for exploratory data analysis, the characterization of measurement processes, the construction of statistical models for predicting and/or optimizing process, experimental design, process control monitoring, significance testing and the evaluation of product reliability. Although the site may be too detailed…

This site is devoted to statistical tests and demonstrations of their use and was created with the support of the National Science Foundation. One section is a complete reference guide - the online statistics textbook, with detailed descriptions of all things statistical. The second, and most fun section, is simulations/demonstrations section where nearly twenty statistical tests…

This site provides a brief reference on statistics that both analytical faculty and students will find useful. The site includes a series of problem sets and supporting MathCAD spreadsheets. Materials available on the website can be downloaded as a pdf file.
The website is available here .

This site provides a clear introduction to the principle component analysis (PCA) without overwhelming the student. The tutorial includes a brief introduction and an explanation of the mathematics of PCA.
The website is available here .

This site provides a basic introduction to probability and statistics. There is a detailed explanation of the normal distribution, with associated mathematics, as well as a treatment of the standard deviation, and the Chi Square test.
The website is available here .

This electronic textbook on statistics provides both extensive and in depth coverage of statistics. Although an excellent reference for analytical chemistry students and faculty, the lack of chemistry-related practice problems or exercises may not make it an appropriate substitute for a traditional text.
The website is available here .