1. Stat310 Fin
Hadley Wickham
Sunday, 19 April 2009
2. 1. Assessment
2. Finish off testing
3. Majoring in statistics
4. Stat405
5. Course feedback
Sunday, 19 April 2009
3. Gingernut
Anzac biscuit
Peanut brownie
Sunday, 19 April 2009
4. Assessment
Exam 3 and homework 8 graded and
available for you to pick up. Model
answers available online.
One common mistake on exam: writing
down joint pdf.
Overall grade: no curving.
Sunday, 19 April 2009
5. Final
Take home. Two hours long.
Three (double-sided) pages of notes.
Available first day of finals week. Due last
day. (Study session)
Four questions organised around cross-
cutting themes (on next slide).
Sunday, 19 April 2009
6. Common themes
Probability of an event.
Independence & conditioning.
Distributions: pdf/pmf, cdf, mgf, named.
Working out mean and variance.
Distribution of transformed variable(s).
Estimation and testing.
Philosophy of grading
Sunday, 19 April 2009
7. Testing example
Xi ~ iid Normal(μx, 1)
Yi ~ iid Normal(μy, 1)
Xs and Ys are independent.
Do they have the same means?
Sunday, 19 April 2009
8. y
y y
y y
y
6.5 y
y
yy
y y
y y
y
y y
y
y
y y y
y
y y
y y y y
y y yy yy
y yy y
yyy
yy yyyy y y
yyy
yy
6.0 y
y y
yy y y y
y y y
yy y
y y y
y
yy y y
y
y
y y y
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y
y
y y
y
y
x x
y
x
y
5.5 x
yxx
x
x x x
x x
x x x
xx
x x
x xx
x x
x x
xx y
x x
x x x x xx x
x
x x x
x x
xx
5.0 x
x x x xx
xx x
xx
x x
x
x
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x x
x x
xx
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xx x x x xx x
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x x
x
x
x x x xx
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4.5 x x xx
x x
20 40 60 80 100
Sunday, 19 April 2009
14. y
x
y x
x
x y
x
5.5 y x
y y x
x
x y
y
x
yy y
x xyx x xx
xy
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y x y xy xx xy
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x yy
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x xy
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x y
y y
x
4.5 y
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x
y x
y
20 40 60 80 100
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15. 1.0
0.5
sameerence
0.0
−0.5
20 40 60 80 100
Can you think of another test-
statistic based on this plot?
Sunday, 19 April 2009
19. Majoring in statistics
I’m one of the undergrad advisors.
3 required stat classes (Stat310, Stat405, Stat410)
+ 6 stat electives
+ calc, linear algebra, computing
Makes for a great double major. Particularly
useful if you’re thinking about grad school.
(Appealing to employers too)
http://statistics.rice.edu/ShowInterior.aspx?id=58
Sunday, 19 April 2009
20. Stat410
Introduction to linear models
Powerful and general statistical tool.
Theory and data
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21. Stat405
Statistical computing and graphics.
Lots of computing and hardly any maths.
Past projects: diamond pricing, card
counting in blackjack, baseball players
over last 100 years, trends in crime
http://had.co.nz/stat405
Sunday, 19 April 2009
22. Electives
SOCI 436 (Houston area survey), 313
(demography)
ECON 340/440 (game theory), 400
(econometrics), 475 (optimisation), 477 (math of
economics), 479 (modelling)
STAT 385, 431 (more theory), 420 (process
control), 421 (time series), 422 (Bayesian data
analysis), 423 (bioinformatics), 453
(biostatistics), 485 (environmental)
Sunday, 19 April 2009
23. Feedback
If you could travel back in time, what advice
would you give yourself about this class?
How would you describe the class in five
words?
What one thing could I do to most improve
the class?
What was your favourite thing about the
class?
Sunday, 19 April 2009
