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HARRIS COUNTY WATERSHED PROTECTION GROUP PowerPoint PPT Presentation


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HARRIS COUNTY WATERSHED PROTECTION GROUP. Lessons Learned on Storm Water Quality Research Projects. Presented by: Trent Martin July 15, 2008. Statistical Significance – Our “Holy Grail”. Statistical Significance – Our “Holy Grail”. POWER.

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HARRIS COUNTY WATERSHED PROTECTION GROUP

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HARRIS COUNTY

WATERSHED PROTECTION GROUP

Lessons Learned on

Storm Water Quality

Research Projects

Presented by:

Trent Martin

July 15, 2008


Statistical Significance – Our “Holy Grail”


Statistical Significance – Our “Holy Grail”

POWER


Statistical Significance – Our “Holy Grail”

POWER

Things that affect POWER:

* variability


Statistical Significance – Our “Holy Grail”

POWER

Things that affect POWER:

* variability

* level of significance


Statistical Significance – Our “Holy Grail”

POWER

Things that affect POWER:

* variability

* level of significance

* size of difference between sets


Statistical Significance – Our “Holy Grail”

POWER

Things that affect POWER:

* variability

* level of significance

* size of difference between sets

* number of samples collected


Quality Assurance Project Plan (QAPP)


It’s OK to ask for help!


K.I.S.S. - Keep it simple. Answer one question at a time.


Any Questions?

For more information:

Harris County Watershed Protection Group

(713) 290 - 3000

or

www.CleanWaterways.org

Physical Address:

9800 Northwest Frwy., Suite 305,

Houston, TX 77092


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