May 1, 2011
Math 112
Chapter 13 #s 22, 38, 47, 74 and 82 I pledge that I have neither given nor received unauthorized
aid
Problem 22
Brain Length
SummaryforBrainLength( cm) 2 2
A ndersonDarlingNormality Test
A Squared
PV alue
Mean
StDev
V ariance
Skew nes
Vincent Yu
MATH112
Article 4
Video Games and Youth Violence
Who? ProCon.org has put together the graphs and charts based on survey and
research from a few sources: the Entertainment Software Association, the Economist,
Adam Thierer, the Virginia Youth Vio
Vincent Yu
MATH112
Article 3
Mountaineering Accident Statistics
Who? Steph Abegg, University of Washington civil engineering grad student enjoys the
outdoors, adventuring and especially mountaineering. She shares her climbing
adventures on her website alo
www.checkfacebook.com
Vincent Yu
MATH112
Article 1
CheckFacebook
Facebook Marketing Statistics, Demographics, Reviews, and News
Who?
The data was put together and collected web analyst Nick Gonazalez who specializes
mainly in social media. Gonazalez often
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What's changing drivers' behavior
Last reviewed: April 2011
In our survey, 78 percent of respondents said they have reduced or stopped behaviors related to distracted driving.
Here is what has influenced them:
April 4, 2011
Math 112
Statistics Article
Who
National Program of Cancer Registries (NPCR)
United States Cancer Statistics (USCS)
2003-2007 Top Ten Cancers
Incidence Rates
Age-Adjusted Invasive Cancer Incidence Rates for the 10 Primary Sites with the Highest Rates within Raceand Ethnic-Specific Categ
This histogram best represents of the G.P.A. data. This graph shows an approximately normal
curve that is J-shaped and slightly skewed to the left. There is an abnormality, meaning a gap
after 4.0 but that is because the grade point averages of college st
March 31, 2011
Math 112
Project
Descriptive Statistics: G.P.A.
Variable
G.P.A.
N
100
N*
0
Variable
G.P.A.
Q3
3.7075
Mean
3.3552
Maximum
4.0000
SE Mean
0.0485
Range
2.5000
StDev
0.4850
Mode
3.4
Variance
0.2352
Minimum
1.5000
Q1
3.1000
Median
3.4000
N for
M
107
a)
Sample
1
0.041
X
50
N
100
Sample p
0.500000
95% CI
(0.402002, 0.597998)
Z-Value
-2.04
P-Value
Ha: P(0.041) is less than 0.6 therefore is true.
110
Sample
1
X
71
N
150
Sample p
0.473333
95% CI
(0.393432, 0.553235)
Z-Value
-2.65
Ha: P(0.008) is less