What is included with this book?
Introduction | p. 1 |
Classifying Individual Samples into One of Two Categories | p. 9 |
Introduction | p. 9 |
Presence/Absence Measurements | p. 11 |
Exhaustive Retesting | p. 12 |
Sequential Retesting | p. 15 |
Binary Split Retesting | p. 18 |
Curtailed Exhaustive Retesting | p. 23 |
Curtailed Sequential Retesting | p. 27 |
Curtailed Binary Split Retesting | p. 31 |
Entropy-Based Retesting | p. 33 |
Exhaustive Retesting in the Presence of Classification Errors | p. 38 |
Other Costs | p. 40 |
Continuous Response Variables | p. 41 |
Quantitatively Curtailed Exhaustive Retesting | p. 45 |
Binary Split Retesting | p. 46 |
Entropy-Based Retesting | p. 49 |
Cost Analysis of Composite Sampling for Classification | p. 49 |
Introduction | p. 49 |
General Cost Expression | p. 49 |
Effect of False Positives and False Negatives on Composite Sample Classification | p. 50 |
Presence/Absence Measurements | p. 51 |
Continuous Measurements | p. 53 |
Identifying Extremely Large Observations | p. 55 |
Introduction | p. 55 |
Prediction of the Sample Maximum | p. 56 |
The Sweep-Out Method to Identify the Sample Maximum | p. 58 |
Extensive Search of Extreme Values | p. 59 |
Application | p. 60 |
Two-Way Composite Sampling Design | p. 68 |
Illustrative Example | p. 70 |
Analysis of Composite Sampling Data Using the Principle of Maximum Entropy | p. 76 |
Introduction | p. 76 |
Modeling Composite Sampling Using the Principle of Maximum Entropy | p. 77 |
When Is the Maximum Entropy Model Reasonable in Practice? | p. 78 |
Estimating Prevalence of a Trait | p. 81 |
Introduction | p. 81 |
The Maximum Likelihood Estimator | p. 82 |
Alternative Estimators | p. 84 |
Comparison Between p and p | p. 85 |
Estimation of Prevalence in Presence of Measurement Error | p. 85 |
A Bayesian Approach to the Classification Problem | p. 87 |
Introduction | p. 87 |
Bayesian Updating of p | p. 90 |
Minimization of the Expected Relative Cost | p. 93 |
Discussion | p. 95 |
Inference on Mean and Variance | p. 97 |
Introduction | p. 97 |
Notation and Basic Results | p. 98 |
Notation | p. 98 |
Basic Results | p. 99 |
Estimation Without Measurement Error | p. 101 |
Estimation in the Presence of Measurement Error | p. 103 |
Maintaining Precision While Reducing Cost | p. 104 |
Estimation of ¿x2 and ¿¿2 | p. 105 |
Estimation of Population Variance | p. 106 |
Confidence Interval for the Population Mean | p. 109 |
Tests of Hypotheses in the Population Mean | p. 110 |
One-Sample Tests | p. 110 |
Two-Sample Tests | p. 111 |
Applications | p. 112 |
Comparison of Arithmetic Averages of Soil pH Values with the pH Values of Composite Samples | p. 112 |
Comparison of Random and Composite Sampling Methods for the Estimation of Fat Contents of Bulk Milk Supplies | p. 112 |
Optimization of Sampling for the Determination of Mean Radium-226 Concentration in Surface Soil | p. 113 |
Composite Sampling with Random Weights | p. 115 |
Introduction | p. 115 |
Expected Value, Variance, and Covariance of Bilinear Random Forms | p. 116 |
Models for the Weights | p. 118 |
Assumptions on the First Two Moments | p. 119 |
Distributional Assumptions | p. 119 |
The Model for Composite Sample Measurements | p. 121 |
Subsampling a Composite Sample | p. 121 |
Several Composite Samples | p. 124 |
Subsampling of Several Composite Samples | p. 125 |
Measurement Error | p. 126 |
Applications | p. 128 |
Sampling Frequency and Comparison of Grab and Composite Sampling Programs for Effluents | p. 128 |
Theoretical Comparison of Grab and Composite Sampling Programs | p. 128 |
Grab vs. Composite Sampling: A Primer for the Manager and Engineer | p. 129 |
Composite Samples Overestimate Waste Loads | p. 129 |
Composite Samples for Foliar Analysis | p. 132 |
Lateral Variability of Forest Floor Properties Under Second-Growth Douglas-Fir Stands and the Usefulness of Composite Sampling Techniques | p. 133 |
A Linear Model for Estimation with Composite Sample Data | p. 135 |
Introduction | p. 135 |
Motivation for a Unified Model | p. 136 |
The Model | p. 137 |
Discussion of the Assumptions | p. 139 |
The Structural/Sampling Submodel | p. 139 |
The Compositing/Subsampling Submodel | p. 140 |
The Structure of the Matrices W, Mw, and ¿w | p. 140 |
Moments of x and y | p. 146 |
Complex Sampling Schemes Before Compositing | p. 146 |
Segmented Populations | p. 147 |
Estimating the Mean in Segmented Populations | p. 147 |
Estimating Variance Components in Segmented Populations | p. 150 |
Estimating the Effect of a Binary Factor | p. 153 |
Fully Segregated Composites | p. 157 |
Fully Confounded Composities | p. 161 |
Elementary Matrices and Kronecker Products | p. 164 |
Decomposition of Block Matrices | p. 165 |
Expectation and Dispersion Matrix When Both W and x Are Random | p. 168 |
The Expectation of W x | p. 168 |
Variance/Covariance Matrix of W x | p. 172 |
Composite Sampling for Site Characterization and Cleanup Evaluation | p. 175 |
Data Quality Objectives | p. 175 |
Optimal Composite Designs | p. 178 |
Cost of a Sampling Program | p. 179 |
Optimal Allocation of Resources | p. 179 |
Power of a Test and Determination of Sample Size | p. 180 |
Algorithms for Determination of Sample Size | p. 181 |
Spatial Structures of Site Characteristics and Composite Sampling | p. 183 |
Introduction | p. 183 |
Models for Spatial Processes | p. 183 |
Composite Sampling | p. 187 |
Application to Two Superfund Sites | p. 190 |
The Two Sites | p. 190 |
Methods | p. 191 |
Results | p. 192 |
Discussion | p. 195 |
Compositing by Spatial Contiguity | p. 198 |
Introduction | p. 198 |
Retesting Strategies | p. 199 |
Composite Sample-Forming Schemes | p. 200 |
Compositing of Ranked Set Samples | p. 201 |
Ranked Set Sampling | p. 201 |
Relative Precision of the RSS Estimator of a Population Mean Relative to Its SRS Estimator | p. 204 |
Unequal Allocation of Sample Sizes | p. 205 |
Formation of Homogeneous Composite Samples | p. 206 |
Composite Sampling of Soils and Sediments | p. 209 |
Detection of Contamination | p. 209 |
Detecting PCB Spills | p. 209 |
Compositing Strategy for Analysis of Samples | p. 211 |
Estimation of the Average Level of Contamination | p. 213 |
Estimation of the Average PCB Concentration on the Spill Area | p. 213 |
Onsite Surface Soil Sampling for PCB at the Armagh Site | p. 214 |
The Armagh Site | p. 215 |
Simulating Composite Samples | p. 218 |
Locating Individual Samples with High PCB Concentrations | p. 221 |
Estimation of Trace Metal Storage in Lake St. Clair Post-settlement Sediments Using Composite Samples | p. 222 |
Composite Sampling of Liquids and Fluids | p. 227 |
Comparison of Random and Composite Sampling Methods for the Estimation of Fat Content of Bulk Milk Supplies | p. 227 |
Experiment | p. 227 |
Estimation Methods | p. 228 |
Results | p. 228 |
Composite Compared with Yield-Weighted Estimate of Fat Percentage | p. 229 |
Composite Sampling of Highway Runoff | p. 229 |
Composite Samples Overestimate Waste Loads | p. 232 |
Composite Sampling and Indoor Air Pollution | p. 235 |
Household Dust Samples | p. 235 |
Composite Sampling and Bioaccumulation | p. 239 |
Example: National Human Adipose Tissue Survey | p. 241 |
Results from the Analysis of 1987 NHATS Data | p. 241 |
Glossary and Terminology | p. 243 |
Bibliography | p. 249 |
Index | p. 267 |
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