ABSTRACT

Selection of Appropriate Statistical Analysis Tools and Procedures ............................................575 Computer Software and Recommended Statistical References to Assist in Data Analysis ..576 Selection of Statistical Procedures.......................................................................................580

Comments on Selected Statistical Analyses Frequently Applied to Receiving Water Data ........582 Determination of Outliers ....................................................................................................582 Exploratory Data Analyses...................................................................................................583 Comparing Multiple Sets of Data with Group Comparison Tests ......................................588 Data Associations .................................................................................................................591 Regression Analyses .............................................................................................................596 Analysis of Trends in Receiving Water Investigations........................................................601 Specific Methods Commonly Used for Evaluation of Biological Data..............................603

Summary of Statistical Elements of Concern when Conducting a Receiving Water Investigation ..605 References ......................................................................................................................................606