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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.

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Presentation Transcript
slide1
HARRIS COUNTY

WATERSHED PROTECTION GROUP

Lessons Learned on

Storm Water Quality

Research Projects

Presented by:

Trent Martin

July 15, 2008

slide5
Statistical Significance – Our “Holy Grail”

POWER

Things that affect POWER:

* variability

slide6
Statistical Significance – Our “Holy Grail”

POWER

Things that affect POWER:

* variability

* level of significance

slide7
Statistical Significance – Our “Holy Grail”

POWER

Things that affect POWER:

* variability

* level of significance

* size of difference between sets

slide8
Statistical Significance – Our “Holy Grail”

POWER

Things that affect POWER:

* variability

* level of significance

* size of difference between sets

* number of samples collected

any questions
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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