Does it include all the regulatory methods in the USEPA guidance documents?
It includes all methods that are given “significant attention” in the 1989 and 1992 guidance documents and the Draft USEPA Unified Guidance. The following methods are included: • Box/Whiskers plot • Time-series plots • Probability Plot • Shewhart-CUSUM control chart • Parametric ANOVA with Bonferroni comparison • Parametric, non-parametric, and Poisson prediction limits • Parametric, non-parametric, and Poisson tolerance limits • Confidence interval • Kruskal-Wallis non-parametric • Wilcoxon Rank Sum non-parametric • Levene’s Test for equal variance • Bartlett’s Test for equal variance • Shapiro-Wilks/Shapiro Francia for Normality • Coefficient of Variation for normality • Skewness • Aitchison’s and Cohen’s Adjustments • ChemStat also includes many graphs and methods not mentioned in the guidance.
