Sampling and Analysis of Environmental Contaminants

EnvS 541

University of Idaho
 
 Module 2
 
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Environmental Sampling

Due Dates:  See Schedule

Resources
Read Manly, Chapters 1 and 2

Lesson Description
This module provides an introduction to the course by discussing the basics of statistical data analysis and sampling. In addition to covering environmental sampling, it reviews populations and samples, sampling distributions, confidence intervals, and data quality objectives.

The main objective of the module is to get comfortable with the three main types of sampling plans: simple random sampling, stratified random sampling, and systematic sampling. There is some discussion of more sophisticated types of sampling at the end of the module but we won't spend as much time focusing on those. For the three sampling designs, you need to be able to define them, know when you would use them, design a simple sampling plan, and know how you would analyze the data resulting from using them.

The textbook covers three types of data analysis stemming from these sampling plans: estimation of means, totals, and proportions. The lectures focus on the most of important of these – estimating means. The other equations can be looked up when needed.

Finally, the last key topic is the calculation of sample sizes and the allocation of the total sample to population strata.

This week, work through the seven submodules and review Chapter 2 in the textbook. You will need to show mastery of this material in Problem Set 2.

 

Activities To Do

Module 2.1
Low bandwidth option Lecture with Audio  9:36
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Module 2.2
Low bandwidth option Lecture with Audio 21:42
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Module 2.3
Low bandwidth option Lecture with Audio  9:06
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Module 2.4
Low bandwidth option Lecture with Audio  4:50
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Module 2.5
Low bandwidth option Lecture with Audio  4:37
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Module 2.6
Low bandwidth option Lecture with Audio 7:27
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Module 2.7
Low bandwidth option Lecture with Audio 2:44
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Practice Problems
Work practice problems if needed.  Check against posted solutions.
Evaluation: Homework/Exams
Complete and Submit Problem Set 1
 
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