Practical Stats

aka Dennis Helsel. Data investigator, innovator, instigator. Teacher and mentor.

[Practical Stats @PracticalStats]

Statistical Methods in Water Resources 2020 textbook is available for free download. https://t.co/A8B1yKDhiM

[Practical Stats @PracticalStats]

Check out my latest article: Free Webinars: Environmental Statistics, including with Nondetects https://t.co/3zHTti0qdT via @LinkedIn

[Practical Stats @PracticalStats]

Free webinar: Correlation and Regression for Data with Nondetects
on Aug 20, 2019 11:00 AM MDT at:https://t.co/Hklcu1vhJK

[Practical Stats @PracticalStats]

Free Webinar: Data with Nondetects https://t.co/nw9qoLrgMB

[Practical Stats @PracticalStats]

Dennis Helsel will receive the 2018 Lifetime Achievement Award from the California Groundwater Resources Association @GRAofCalifornia on Wed. Sept 26th.

[Practical Stats @PracticalStats]

Looking at chemical or species variables one by one often misses the point https://t.co/mf2wYtn0o8

[Practical Stats @PracticalStats]

Great course recently at Alberta Environment and Parks.  Here's one attendee's unsolicited review.  Thanks,…https://t.co/gxdHfzwNz8

[Practical Stats @PracticalStats]

This month's free newsletter: Outlier Tests Don't Work. Treat Outliers Like Children https://t.co/mNRRjcWOZ8 #PracticalStats

[Practical Stats @PracticalStats]

What's the Difference btw Permutation Tests & Bootstrapping? Subscribe now: https://t.co/jCUgGSjeEk #practicalstats #environmentalstatistics

[Practical Stats @PracticalStats]

Ongoing on-demand training course on Environmental Statistics https://t.co/taZp2IKaDq #practicalstats #onlinelearning #statisticsdowntoearth

[Practical Stats @PracticalStats]

@FulweilerLab @lekoenig @FosterSQ
Read the consequences of deleting nondetects for the Challenger launch at
https://t.co/xJ0t9eCXlU

[Practical Stats @PracticalStats]

@FulweilerLab @lekoenig @FosterSQ
Also I'll send several articles if folks email me with a request. And there's a textbook.

[Practical Stats @PracticalStats]

@FulweilerLab @lekoenig @PracticalStats @FosterSQ

[Practical Stats @PracticalStats]

Jan 26 webinar "7 Perilous Errors in Environmental Stats" "https://t.co/5xaYgd7OSL". Free registration

[Practical Stats @PracticalStats]

The meaning of a mean pH. http://t.co/8SzEsi5xwI

[Practical Stats @PracticalStats]

Fall courses on multivariate statistics and using data with nondetects are open for registration. Where and when at http://t.co/c4wzuxtnGf

[Practical Stats @PracticalStats]

Yogi Berra on the Importance of Graphics for Data Analysis. http://t.co/r8mtR6Evor

[Practical Stats @PracticalStats]

Yogi on Decision Theory. “When you arrive at a fork in the road…” http://t.co/r8mtR6Evor

[Practical Stats @PracticalStats]

Yogi Stats: Yogi Berra on Statistical Theory. http://t.co/cOHMBuXgft

[Practical Stats @PracticalStats]

A few weeks of fun posts: Yogi Stats. Yogi Berra on Experimental Design. http://t.co/r8mtR6Evor