inquiry 1 proposals are due in lab th 9/9 or m 9/13 homework #1 coming soon
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Inquiry 1 proposals are due in lab Th 9/9 or M 9/13 Homework #1 coming soon Today: Analyzing Data and Statistics. xkcd.com. “Austin's top lottery outlets are surrounded by low-income housing.”. statesman.com 9/5/10. - PowerPoint PPT PresentationTRANSCRIPT
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Inquiry 1 proposals are due in lab Th 9/9or M 9/13
Homework #1 coming soon
Today: Analyzing Data and Statistics
xkcd.com
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statesman.com 9/5/10
“Austin's top lottery outlets are surrounded by low-income housing.”
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statesman.com 9/5/10
“the best-selling lottery outlet is the Zip-N, on Shoal Creek Boulevard at Anderson Lane, an area with a mix of upscale homes, older subdivisions and apartment complexes.”
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2007 crime clock statistics:
From FBI.gov
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1981 1986 1991 1996 2001 2006
1,000,000
1,100,000
1,200,000
1,300,000
1,400,000
1,500,000
1,600,000
1,700,000
1,800,000
1,900,000
2,000,000
U.S. Violent Crime
year
viol
ent c
rim
es
from fbi.gov
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1981 1986 1991 1996 2001 2006
400.0
450.0
500.0
550.0
600.0
650.0
700.0
750.0
800.0
U.S. Violent Crimes per Capita
year
viol
ent c
rim
es/1
00k
peop
le
from fbi.gov
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http://www.wunderground.com/cgi-bin/findweather/getForecast?query=78705
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Average height in FRI Mon. lab vs. Thur. lab
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Average height of Mon. lab vs. Thur. lab
… OR... Average height of male vs femaleFRI students
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Enhancement of Biodiversity and Ecosystem Services by Ecological Restoration: A Meta-AnalysisJ M Rey Benayas, A C Newton, A Diaz, J M BullockScience 28 August 2009: Vol. 325. no. 5944, pp. 1121 – 1124
Looked at the results of 89 different ecological restorations.
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Fig 1: Enhancement of Biodiversity and Ecosystem Services by Ecological Restoration: A Meta-AnalysisJ M Rey Benayas, A C Newton, A Diaz, J M BullockScience 28 August 2009: Vol. 325. no. 5944, pp. 1121 - 1124
(goods)
(nutrients and primary production)
(climate, water, etc)
P < 0.001P < 0.001
P < 0.05
P > 0.05
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The P value tells us the probability that the differences or predictions in our data are from random chance.
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The P value tells us the probability that the differences or predictions in our data are from random chance.
P< 0.05 (less than 5% chance of randomness)Is usually the acceptable cut-off.
P=0.05 is a 95% confidence level.
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Fig 1: Enhancement of Biodiversity and Ecosystem Services by Ecological Restoration: A Meta-AnalysisJ M Rey Benayas, A C Newton, A Diaz, J M BullockScience 28 August 2009: Vol. 325. no. 5944, pp. 1121 - 1124
(goods)
(nutrients and primary production)
(climate, water, etc)
P < 0.001P < 0.001
P < 0.05
P > 0.05
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We can have uncertainty about past events...or future events
World Population, human
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36.4
9
2.3
UN Department of Economic and Social AffairsPopulation Division (2004)
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Annual % increase in global population
Fig 53.23Predictions are based on current conditions and trends
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http://www.esr.org/outreach/climate_change/basics/basics.html
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UN-IPCC report
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Most statistical work can be done, and more easily done, by computer using programs such as:
MS Excel
Open Office
SPSS
SAS
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Most statistical work can be done, and more easily done, by computer using programs such as:
MS Excel is the most common.
Available from UT for cheap, ~$30.
If you have not used it, start practicing now.
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Most statistical work can be done, and more easily done, by computer using programs such as:
Open Office is a free alternative.
If you have not used it, start practicing now.
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Next
The Basics:Mean, median, and mode
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Inquiry 1 proposals are due in lab Th 9/9or M 9/13
Homework #1 coming soon
Next Mean, Median, Mode, and T-test
xkcd.com