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  • Dennis Helsel
Applied Environmental Statistics 1: (Existing registrants only)

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Make Sense of Your Data
Dennis Helsel Dennis Helsel
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COMPLETE
Applied Environmental Statistics 2: (Existing registrants only)

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Regression Models and Trend Analysis
Dennis Helsel Dennis Helsel
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COMPLETE
Nondetects And Data Analysis (NADA): (Existing registrants only)

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Statistical analysis of censored data (data with nondetects)
Dennis Helsel Dennis Helsel
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COMPLETE
Bundle: AES 1 & 2: (Existing registrants only)

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Make sense of your data, from the basics through trend analysis
2 Course Bundle
%
COMPLETE
Intro to R

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Getting started with the free statistics software
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COMPLETE
FREE
Permutation Tests and Bootstrapping

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Never worry about a normal distribution again!
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COMPLETE
FREE
Introduction to Nondetects And Data Analysis

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Simple things to do (and not do) with nondetects
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COMPLETE
FREE
Fitting Distributions to Data with Nondetects

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Getting the most out of small datasets with NDs
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COMPLETE
FREE
Testing Group Differences w/NDs

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For Data with Multiple Detection Limits
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COMPLETE
FREE
The Mystery of Nondetects

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How Censored Data Methods Work
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%
COMPLETE
FREE
Correlation and Regression for Data with NDs

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without substituting values for nondetects
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COMPLETE
FREE
Trend Analysis for Data w/ NDs

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Never substitute fractions of the detection limit
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COMPLETE
FREE
Incorporating > and < Values in Data Analysis

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Using interval censored methods
Dennis Helsel Dennis Helsel
%
COMPLETE
FREE
Matched Pair Tests

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for Data With Nondetects
Dennis Helsel Dennis Helsel
%
COMPLETE
FREE
NADA2: Everything You Can Do With Nondetects

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Preview the R package coming in early 2021
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%
COMPLETE
FREE
40 Years of Water Quality Statistics

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What's New, What's Not
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COMPLETE
FREE
How Multiple Comparison Tests Work

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Which of These Things is Different Than Others?
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COMPLETE
FREE

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