Welcome
to the STAtistics Zone
(AP
Statistics, Block 4)
Are
you nervous when you see NCWEE? concerned when you see CIRC? perturbed when you
see PBC? Visit Mr. Hansen’s fabled abbreviations page
to make sense of those cryptic markings you see on your papers.
Schedule
at a Glance (see archives for older entries) 


T 9/1/15 
First day of
class. 

W 9/2/15 
HW due: 

Th
9/3/15 
No class. 

F 9/4/15 
HW due: 

M 9/7/15 
No school
(Labor Day). 

T 9/8/15 
HW due: 

W 9/9/15 
In class:
Distributions, left and right skewness (including extreme skewness),
bimodality, normality, and introduction to CLT. 

Th
9/10/15 
No class. 

F 9/11/15 
HW due: 

M 9/14/15 
HW due: Read pp. 4263. Reading notes are required, as
always. Most future assignments will not repeat the reminder that reading
notes are always required. 

T 9/15/15 
No class. 

W 9/16/15 
HW due: 

Th
9/17/15 
HW due: Write
p. 54 #2.40, p. 67 #2.58, and p. 69 #2.69. 

F 9/18/15 
HW due: 

M 9/21/15 
No class. 

T 9/22/15 
HW due: Read
pp. 97113. 

W 9/23/15 
No additional
written HW is due. Please use this as an opportunity to get caught up on any
previous HW assignments and to make flashcards for yourself. If the entire
class aces the NTQ today, there will be a special prize. Note: All notation and terminology topics discussed in class, as
well as all notation and terminology covered in the first 113 pages of the
textbook, are fair game for the NTQ. 

Th
9/24/15 
No class. 

F 9/25/15 
Senior retreat.
William must report for roll call; all others are excused. 

M 9/28/15 
HW due: 

T 9/29/15 
HW due: 

W 9/30/15 
Test (100 pts.) on all material covered
thus far. 

Th
10/1/15 
No class. 

F 10/2/15 
HW due: Read
pp. 117124, 127136. 

M 10/5/15 
HW due: 

T 10/6/15 
No class. 

W 10/7/15 
No additional
HW due. Use the time to make sure that you are 100% caught up on all
previously assigned work. 

Th
10/8/15 
HW due: Read
pp. 159174. 

F 10/9/15 
No school
(faculty professional day). 

M 10/12/15 
No school
(Columbus Day). 

T 10/13/15 
HW due: Write
#4.33 on pp. 175176. Note: In part
(a), be sure to use the word “skewness” in your answer, and support your
conclusion with an appropriate visual aid. In part (b), remember what we
learned about describing distributions and making comparisons. 

W 10/14/15 
No class. 

Th
10/15/15 
HW due: 

F 10/16/15 
No additional
written HW due. 

M 10/19/15 
No class.
However, group leaders are required to submit their proposed project
milestones by email over the weekend (deadline: 11:59 p.m. Sunday). Feedback
will be provided by email. 

T 10/20/15 
HW due: 

W 10/21/15 
HW due: Work on
your group project. 

Th
10/22/15 
HW due: Work on
your group project. 

F 10/23/15 
No class. 

M 10/26/15 
HW due: Draft
of group project. 

T 10/27/15 
HW due: 

W 10/28/15 
No class. 

Th
10/29/15 
HW due: 

F 10/30/15 
Big Quiz (70 points) on all recent material. 

M 11/2/15 
No additional
HW is due. 

T 11/3/15 
No class. 

W 11/4/15 
HW due: Read
pp. 221233; write #5.36ab. Note:
For part (b), compute the 10 residuals by hand, by using the formula (i.e., true y minus predicted y) in each case. This is the last time you will have to do this
by hand. Use the RESID list (created by your calculator when you execute STAT
CALC 8) to check your work. When constructing your residual plot
(scatterplot), remember to put x on
the xaxis and RESID on the yaxis. Also remember to transcribe
your residual plot onto your HW paper. 

Th
11/5/15 
HW due: Read
pp. 238252; write #5.54 on p. 253. 

F 11/6/15 
No school
(faculty professional day). 

M 11/9/15 
No class. 

T 11/10/15 
HW due: 

W 11/11/15 
HW due: Revise
your project proposals. All groups can improve the control aspect of the design. Email your revision before the
start of class. 

Th
11/12/15 
HW due: Revise
your project proposals as needed, and append your proposed milestones.
Project leader or deputy should send email, with similar subject line as
before, NLT 1:39 p.m. on Thursday. 

F 11/13/15 
No class. 

M 11/16/15 
HW due: Read pp.
264267 (middle), chapter summary on pp. 268269, and 279286. An opennotes
quiz is possible. 

T 11/17/15 
HW due: Work on
your group project. 

W 11/18/15 
No class. 

Th
11/19/15 
HW due: Work on
your group project, and write #6.10 (p. 287). 

F 11/20/15 
In class: Guest speaker,
Mr. Joe Morris of MITRE Corporation. 

M 11/23/15 
HW due: Work on
your group project. 

T 11/24/15 
No class. 

W 11/25/15 
No school. 

Th
11/26/15 
No school
(Thanksgiving). 

F 11/27/15 
No school. 

M 11/30/15 
HW due: Do as
much of the conditional probability
miniproject as possible. Problems 3 through 6 are required. Hopefully,
you already recorded the answers for #2, and #3 is an interesting challenge
problem (suggested but not required). You may work with a partner if you
wish, but you must document your collaboration on the top of the first sheet,
and each person must fill out a separate written answer sheet. Your answers
will almost certainly require extra sheets of paper in order to show your
work and assumptions. 

T 12/1/15 
HW due: Write
pp. 310313 #6.28, 6.30, 6.32, 6.33, 6.34, 6.38, 6.40. 

W 12/2/15 
No class. 

Th
12/3/15 
HW due: 

F 12/4/15 
HW due: Write
#6.50, 6.56, 6.57, 6.64, 6.66. 

M 12/7/15 
HW due: 

T 12/8/15 
No class. 

W 12/9/15 
HW due: 

Th
12/10/15 
HW due: 

F 12/11/15 
No class. 

M 12/14/15 
HW due: Review
for test. In order to prepare for the test, you should not reread the entire
textbook. Instead, you should work problems,
preferably from the ends of the chapters as opposed to the ends of the
sections. If you find yourself unable to make headway, that would be a
time to reread the text to refresh your memory. 

T 12/15/15 
HW due:
Continue reviewing for test and writing out additional review problems of
your choice (at least another 35 minutes’ worth). See suggestions and ground
rules as stated in the previous calendar entry. 

W 12/16/15 
Test (100 points) on pp. 221370, plus
additional classroom discussion topics. 

Th
12/17/15 
No class. 

F 12/18/15 
Video presentation on chaos
and fractals. If you miss class for any reason, you will be required to view the video on your
own time. There is a technical glitch at 51:30, but when you get there, you
can work around the glitch by waiting a moment and then pressing the left
arrow key or by manually resetting the play point to 51:31. The line that is
partially garbled is this: “Math is our one and only strategy for
understanding the complexity of nature,” spoken by Dr. Ralph Abraham of the
University of California, Santa Cruz. 

M 1/4/16 
Classes resume. An
opennotes quiz on the fractals video is likely. 

T 1/5/16 
No class. 

W 1/6/16 
No additional HW due. 

Th
1/7/16 
HW due: Begin working
problems from the Barron’s review book. It is strongly suggested that you
follow the standard time limits (2 minutes and 15 seconds for each
multiplechoice problem, 13 minutes for a standard freeresponse problem, and
25 minutes for a “long” freeresponse problem). “Long” freeresponse problems
are always #6 in the practice exams. 

F 1/8/16 
Last day of class. 

M 1/11/16 
Lastminute Q&A session, MH102, 8:309:55 a.m.
(optional). 

T 1/12/16 
Midterm Exam (20% of your semester grade) for
everyone else, MH311, 2:004:00 p.m. 

W 1/20/16 
Classes resume. 

Th
1/21/16 
HW due: Read §7.4 (pp.
372383). Reading notes are required, as always. 

F 1/22/16 
Snow day. The assignment
originally due today has been postponed until Monday. If Monday also turns
out to be a snow day, you will need to check this page for additional
assignments that will be due when school resumes. 

M 1/25/16 
Snow day. However, the
following assignment is still due today: 

T 1/26/16 
Snow day. However, the following
assignment is still due today: 

W 1/27/16 
No class. 

Th
1/28/16 
HW due: Write #7.64 (rough
sketch required for each), 7.66 (rough sketch required for each), 7.70 (rough
sketch required for each). 

F 1/29/16 
HW due: Read §7.7 and §8.1.
If you used your time to advantage on Thursday morning, you may have little
or no HW. 

M 2/1/16 
HW due: 

T 2/2/16 
No class. However, you are
expected to read about the outcome of the Iowa caucuses and to be able to
discuss the differences between the polling predictions and the actual
outcomes. 

W 2/3/16 
HW due: 

Th
2/4/16 
HW due: 

F 2/5/16 
No class. 

M 2/8/16 
HW due: Read §8.3 (pp.
461466). 

T 2/9/16 
HW due: Write #8.23, 8.24,
8.28, and 8.30 (pp. 466467). 

W 2/10/16 
HW due: 

Th
2/11/16 
No class. 

F 2/12/16 
No school (faculty
professional day). 

M 2/15/16 
No school (holiday). 

T 2/16/16 
HW due: 

W 2/17/16 
HW due: At the top of the www.modd.net page, click on the “VIDEOS!”
link and watch videos #1, 3B, and 4. Total running time is about 67 minutes,
which means that you will need to use time both at school and at home. You
are responsible for all the information contained in the videos. Notetaking
is encouraged. 

Th
2/18/16 
No class. 

F 2/19/16 
HW due: 

M 2/22/16 
HW due: Read §10.1 (pp.
525529) and §10.2 (pp. 531534). This is a relatively short reading assignment,
but the information is supercritical for the remainder of the course. It
would probably be a good idea to do the reading twice. Keep good reading
notes. 

T 2/23/16 
HW due: Read §10.3 (pp.
537548). 

W 2/24/16 
No class. 

Th
2/25/16 
HW due: 

F 2/26/16 
HW due: Continue reading
and memorizing your STAT TESTS handout. Be prepared for a possible quiz today
on 2, 5, 8, and A. You are also expected to know why we do not use 1, 3, 7,
and 9, and you should know the tan boxes on pp. 552553 by heart. 

M 2/29/16 
No class. 

T 3/1/16 
No additional written HW
due. 

W 3/2/16 
HW due: Read §10.4 (pp.
550558). Reading notes are required, as always. 

Th
3/3/16 
HW due: Write #10.41 (p.
550) and #10.61 (p. 561). Use full PHA(S)TPC
procedures for each, including the S (sketch) step. With practice, you should
be able to do problems of this difficulty in 1013 minutes each. 

F 3/4/16 
No class. 

M 3/7/16 
HW due: 

T 3/8/16 
HW due: 

W 3/9/16 
No class. 

Th
3/10/16 
HW due: 

F 3/11/16 
Test (100 pts.) on all recent material. Do you have to know how to compute 1sample
confidence intervals? How to conduct 1sample statistical tests with full
PHA(S)TPC procedures? How to write intelligently about Type I and Type II
errors and the inherent tradeoffs involved? How to find the mean and standard
deviation of any random variable whose distribution is given? How to state
and work with the CLT? How to mark up your formula sheet so that it is
helpful to you? How to define the word “confidence” as opposed to
“probability”? Yes for all of the above. 

M 3/14/16 
Pi Day. (Remember, 3.1416. Get it?) In honor
of Pi Day and the first warm weekend of the year, there is no additional HW
due today. Hooray! 

T 3/15/16 
No class. 

W 3/16/16 
HW due: 

Th
3/17/16 
No additional written HW is
due. However, one or two quizzes over recent material are likely. If you have
been keeping up and paying attention in class, there is no need to study more
than usual. 

F 3/18/16 
No class. 

Spring Break 
Your assignment is to read How to Lie with Statistics (a quick, enjoyable
read) and to work a little bit each day (2030 minutes is a good target) on
AP review. The time you spend on AP review is like money in the bank—every little bit you do will help boost your
knowledge. Be sure to do your AP review correctly, though. Don’t look at
the questions while flipping back to the answers and saying, “Yeah, yeah,
yeah, that’s pretty close to what I would have said.” You’re wasting your
time if you do that. Instead, write
down your answers and make an emotional commitment to what you write.
Then, check all your answers at the end of each group of questions. When you
get something wrong, it stings, and the pain that you feel will help you
learn from your mistakes. 

M 4/4/16 
Classes resume. 

T 4/5/16 
HW due: Continue your AP
review. Bring your written evidence for a quick visual inspection. Remember,
the discipline of tracking your progress (preferably by topic area) is for
your benefit, so that you will do better on the AP exam in May. 

W 4/6/16 
HW due: Continue your AP
review, but also set aside about 20 minutes to do the following problems: 

Th
4/7/16 
No class. 

F 4/8/16 
HW due: Continue working on
AP review (approx.. 20 minutes per night, or more if you can manage). It is
strongly recommended that you select a 2sample t or 2proportion z
problem as part of your review. 

M 4/11/16 
HW due: Continue working on
AP review (approx.. 20 minutes per night, or more if you can manage). Also
write up the following APlike problem: 

T 4/12/16 
Diversity Forum (no class). 

W 4/13/16 
No class. 

Th
4/14/16 
HW due: Three more days of
AP review. Target is at least 20 minutes per night, for a total of 60
additional minutes since our last class on Monday. If it is not possible for
you to do homework on Monday night because of the Consent Forum, then two
days of at least 30 minutes each will suffice. 

F 4/15/16 
HW due: Continue your AP
review. 

M 4/18/16 
HW due: Continue your AP
review, but this time, be sure to do at least one 2way problem. Hint: Such problems are easily
identified, since they are the only problems that contain matrices as part of
the setup. 

T 4/19/16 
No class. 

W 4/20/16 
HW due: Continue your AP
review. 

Th 4/21/16 
HW due: Continue your AP
review. 

F 4/22/16 
No class. 

M 4/25/16 
No school (Phi Beta Kappa
Day). 

T 4/26/16 
HW due: Continue your AP
review. 

W 4/27/16 
HW due: Continue your AP review.
Continue to bring your review log to class each day. Be prepared to show at
least one example that you have worked of a chisquare G.O.F. problem, a
chisquare 2way problem, and a LSRL ttest
problem. 

Th
4/28/16 
HW due: Continue your AP
review. 

F 4/29/16 
No class. 

M 5/2/16 
HW due: Continue your AP
review. 

T 5/3/16 
HW due: Continue your AP
review. 

W 5/4/16 
No class. 

Th
5/5/16 
HW due: Continue your AP
review. 

F 5/5/16 
HW due: Continue your AP
review. 

M 5/9/16 
HW due: Continue your AP
review. 

T 5/10/16 
No class. 

W 5/11/16 
Field Trip.
Depart STA (bus on service road near Martin Gym) shortly after 8:00 a.m.
Regular school dress is required. We will be back by 1:00 p.m., in time for
lunch and your Block 6 class period. 

Th
5/12/16 
HW due: Continue your AP
review. Even if you are taking the AP exam, you need to report to class for
roll call and a check of your overall AP review record. After that is
complete, you will have the option of leaving to study on your own, or
staying until about 12:10 to participate in a group review session. 

F 5/13/16 
No class. 

M 5/16/16 
Field Trip (alternate date). Depart STA (bus on service road near Martin Gym) at
8:00 a.m. Regular school dress is required. We will be back by 1:00 p.m., in
time for lunch and your regular Block 1 class. 

T 5/17/16 
HW due (everyone except
William M.): 

W 5/18/16 


Th
5/19/16 
No class. 

F 5/20/16 


Exam Week 
Mr. Hansen’s office hours
for exam week are Monday 10:002:00, Tuesday 10:001:45, and Thursday
10:002:00. If you can’t finish your Excelcise and/or
MustPass Quiz during those times, you need to contact Mr. Hansen ASAP! 

F 5/27/16 
Update!
There will be additional office hours on Friday, May 27, from 7:30 a.m. to
12:30 p.m. The following people need to be sure to stop by during that window
in order to pass the Excelcise: 

Essential Links:
 STA School Handbook
 College
Board: AP Statistics Course Description
 College
Board: more than 100 AP freeresponse questions and scoring rubrics from
previous years
 Our old textbook’s site has
online quizzes and some useful links
 RVLS (Rice Virtual Lab in
Statistics): One of the best sites anywhere for statistics! Here you’ll find
a complete college statistics course (complete with clickable glossary and great
case studies), simulations, and some excellent analysis tools.
 Virtual Laboratories in Probability
and Statistics (University of Alabama at Huntsville)
 StatCrunch
3.0 (formerly WebStat): An online statistical
computing package (requires Java)
 How to study
statistics (written by a professor at the University of Central Florida,
but the ideas are valid for our class)
 Eric Weisstein’s World of Mathematics: a monstrously
huge hyperlinked reference
 The MustPass Quiz for Statistics:
doubles as a review for the AP exam
TI83 Links:
 CINT (converts confidence interval from
interval notation to the more convenient “estimate ± m.o.e.” format)
 INVT (inverse t) program
written by Mr. Hansen and the Class of 1999
 CHISQGOF (ChiSquare Goodness
of Fit) program also written by Mr. Hansen and the Class of 1999
 CSDELUXE (ChiSquare Deluxe):
combines CHISQGOF and STAT TESTS C into one package; written by Mr. Hansen for
the Class of 2003
 Modifications to SCATRBOX program
so that it returns the LSRL equation at the end (followon to a stat teacher
workshop I attended on 12/5/2001)
 David Pachner’s statistical
test and confidence interval files
for the TI83 (added 4/16/2001; not reviewed by Mr. Hansen for accuracy)
 TI83 programs
from Texas Instruments
Philosophical Links:
 In praise of
Bayes: a very readable overview of the tension between the standard
(“frequentist”) approach to probability and the Bayesian view
Controversial Links:
 Does an elite
college really pay? Article addresses the issue of whether you would do
better financially if you simply invested the difference in tuition price.
 Does
traditional hypothesis testing actually make sense? Article questions
whether the entire second semester of our course is a waste of time . . .
 Are
law schools cooking their ranking statistics? Every high school statistics
student should read this (and maybe a second time, four years later).
Fun Links:
 Guessing
correlation coefficients by eye
 Another
correlation game
 Photos from our 5/20/99 field
trip to the National
Cryptologic Museum at the NSA
 Huge Internet gallery of statistics jokes
(warning: many are excellent, but some are dangerously lame)
 Average age at death for rock
stars is 36.9 (vs. 75.8 for the overall population). . . this site is
religiously oriented (and apparently sincere), but the reasoning process is
seriously flawed. Can you find the problem?
 Chance Database Welcome Page
(this is the link cited in the 4/4/99 Washington Post Unconventional Wiz
column)
 Accident statistics (the taxicab
problem)
 Psychological
probability quiz
 Marilyn is Wrong! (a truly
great site, even though it doesn’t seem to include Dr. Morse’s response to
Marilyn yet)
 Male sweat may be good for women’s health (a scholarly
article with p and tvalues from 2003, plus an abstract in
2007)
 Lying with
statistics
 One of the biggest marketing blunders of all time: the New Coke fiasco
 More fun links on Mr. Hansen’s home page
Serious Links (click here)
Extra Credit (please see me if
interested):
 American Statistical Association poster or
project competition, deadline 5/23/2014 if you desire extra credit
 Washington Statistical Society Curtis Jacobs Memorial Prize,
deadline 5/10/2014
 Other extra credit options are available under the Fun Links at modd.net
(see Mathcross Puzzles)
Group Projects (1998
onward):
Exploratory Data Analysis
 Assignment (200506)
 Results (199899)
 Results (19992000)
 Results (200001)
 Results (200506)
Opinion Survey
 Assignment (200001)
 Results (19992000)
 Results (200001)
Experimental Design and Execution
 Assignment (200001)
 Results (199899)
 Results (200001)
Pairs Project on How to Lie With Statistics and Pvalue
Calculations
 Assignment (200001)
 List of Partners (200001)
Critique of a Scientific Article
 Assignment
AP Review
 D period (199899)
 F period (199899)
Test #1 (Chapters 12 plus §3.1 of old
textbook), Sept. 2000:
 Test #1
Old Test #1 (Introduction
through Section 2.2 of old old textbook):
 Study guide
 Test #1Dhas a residual plot question
not found in the F period version
 Test #1F
Test #2, Oct. 1998:
 Mr. Hansen’s study guide
 Eric Love’s study guide
(1/12/1999 revised version)
 Test #2 (merged version, with
comments)
Test #3 (Chapter 5) for 19992000
 Answers to practice test (the practice
test was handed out in hard copy form on 11/15/1999)
 Takehome portion distributed
11/16/1999, due 11/17/1999
Old Test #3 (Chapter 4 of old old textbook):
 Study guide
 Test #3 (merged version)
 Answer key
Test #4 (Sections 5.1, 5.2, 6.1 of old old textbook):
 Study guide
 Test #4D
 Test #4F
Test #4 (Chapters 7 and 8 of old textbook:
random variables, binomial & geometric distributions):
 Actual test, 1/29/2004
Test #5 (Sections 6.2, 6.3, 7.1 of old old textbook):
 Study guide
 Practice test
 Answer key for practice test (incl.
correction to #18 suggested by C. Muller)
 Test #5 (merged version)
Test #5 (Sections 7.2 through 9.1 of old
textbook):
 Actual test, 2/6/2002
Test #6 (Sections 7.17.3 of old old textbook):
 Practice test
 Answer key for practice test
 Test #6D,
with answer key
Test #6 (Chapters 9 and 10 of old
textbook):
 Actual test, 3/7/2002
Test #7 (Sections 8.18.3 of old old textbook, plus ChiSquare GOF):
 Answer key for sample test problems
 Inclass portion
 Takehome portion
Test #8 (Section 9.1 of old old textbook, plus Geometric Probability Distributions):
 Takehome test due Wednesday
4/28/1999
 Answer key (not yet released)
AP Exam Review
 Real
sample AP questions from the College Board
 TI83 Function Summary
 TI83/84 STAT TESTS Summary,
including the assumptions you need to check
 PHA(S)TPC procedures, a systematic
way of performing statistical tests and calculating confidence intervals
 LSRL Top Ten
 Normal vs. Binomial: What are
the hallmarks and differences? (Includes many example problems, with
solutions.)
 Formula sheet markup guide
 Guide
to standard error formulas (third page of the AP formula sheet)
Question of
the day: 12/15/1998
Preview of
quiz for Wednesday, 11/18/1998
Return to Mr. Hansen’s
home page
Return
to Mathematics Department home page
Return
to St. Albans home page