Welcome
to the STAtistics Zone
(Statistics,
Period D)
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) 


M 2/11/13 
HW due: Write #9.30 (using
sketches for each—do not write tcdf even though that’s what you will use), 9.31, 9.32,
9.34, 9.40, and 9.42 on pp. 505507. 

T 2/12/13 
HW due: Review problems,
minimum of 35 minutes’ worth. Log your time and bring written evidence of
what you worked on. Hashing through previously assigned problems is
permitted, but use a fresh sheet of paper with Tuesday’s due date. Label the
page number and problem number for each problem that you work on. 

W 2/13/13 
Test (100 pts.) on Sampling Distributions, t and z models, Confidence Intervals, and Assumptions. This will be a 40minute test, since a Friday
schedule is in effect. 

Th
2/14/13 
HW due: Write Activities
9.3 and 9.4 on p. 516. 

F 2/15/13 
No school (faculty
professional day). 

M 2/18/13 
No school (holiday). 

T 2/19/13 
HW due: Correct last week’s test. Students with scores below 80
need to print out a fresh copy of the test and fill in everything, even questions that were correct on the first effort.
Those with scores of 80 or above can simply write out corrected answers (for
missed problems only) on a fresh sheet of paper. 

W 2/20/13 
HW due: 

Th
2/21/13 
HW due: 

F 2/22/13 
HW due: Write #11.62 on p.
635, #11.66 on p. 636, #11.74 on p. 637. Use PHASTPC
procedures throughout, and show all steps. Liberal usage of ditto marks is
permitted, as long as your meaning remains clear. 

M 2/25/13 
HW due: 

T 2/26/13 
HW due: 

W 2/27/13 
HW due: 

Th
2/28/13 
HW due: Each group must
submit a draft methodology statement.
Describe your method of selecting your sample, your target sample size(s),
the data collection procedure in detail, and the type of statistical test you
will use (including, if possible, your null and alternative hypotheses).
Perfection is not expected on this draft. However, you must make a serious
attempt. 

F 3/1/13 
HW due: Each group must
submit a revised draft methodology
statement. For full credit, the format must include names (spelled
correctly) in the upper right corner, with group leader underlined or marked
in some fashion, and with the palindromic date
3/1/13 featured prominently. (A student pointed out that there are also 10
more palindromic dates later in the month.) 

M 3/4/13 
HW due: Second revised
draft methodology. Make sure that your methodology addresses all reasonable
questions that people could ask about how you intend to carry out your
project, and especially make sure that the research question and the rest of
the methodology are consistent. 

T 3/5/13 
No class (Diversity Day). 

W 3/6/13 
No school (snow day). Thursday’s
assignment was supposed to be posted by noon today, but since it was not, you
can enjoy the Complete Snow Day Experience. Hurray! 

Th
3/7/13 
School resumes, presumably.
No additional written work is due today. 

F 3/8/13 
HW due: Final revision of
methodology. Remember, the goals of control,
randomization of assignment, and replication
must be explicitly addressed. That means subheadings! It is not enough to
sprinkle these ideas here and there throughout your writeup.
Subheadings will make your job easier. 

M 3/11/13 
HW due: Read the paragraphs
below. Read them several times, and make some sketches to demonstrate that
you have read them. Then write #12.9, 12.11, 12.14 on pp. 658659, plus
#12.19 and 12.20 on pp. 672673. Use full PHASTPC procedures throughout, but
you may use “. . .” to omit most of the tedious computations of the statistic. When checking
the size of the expected cell counts, you need to list all of the expected
counts, but you do not need to show the work. With practice, you can do these
in about 5 minutes each. 

T 3/12/13 
Project list as of
3/11/2013: 

W 3/13/13 
HW due: Produce a group document (with buyin from each
member) in which you estimate the power of your test against a likely
alternative hypothesis. This will be a unified document in which you all
agree on the methodology, the estimate of the ES, the estimate of s (if applicable), the level, and the
suitability of the power. Your goal for power is 70% or better. If you fall
short, be sure to discuss the ways in which you could modify your project in
order to increase the power of the test. It would be a shame to do all that
work, only to find that your experiment was inconclusive on account of low
power! 

Th 3/14/13 
HW due: 

F 3/15/13 
HW due: Work on group
project, and be prepared for a quiz over all recent material. 

M 3/18/13 
HW due: Work on group
project. 

T 3/19/13 
HW due: Draft (not final
version) of group project writeup. All you are
expected to have at this point is a table of raw data, in Excel format, and a
short sketchy discussion of your research findings. You should be able to
tell the rest of the class whether your research question was corroborated or
not. 

W 3/20/13 
Quiz (10 pts.) on all recent material. 

M 4/1/13 
Classes resume. 

T 4/2/13 
HW due: Work on data
collection activities for your group project (math facts, free throws). If
your group has already gathered data (art backstory,
apple juice, headphones), then begin working on your project writeup, which will be due Friday. 

W 4/3/13 
HW due: 

Th
4/4/13 
HW due: 

F 4/5/13 
HW due: 

M 4/8/13 
HW due: Work on AP review
questions from your review book. Work a minimum of 1 freeresponse question
and 5 multiplechoice questions. More are certainly encouraged. Keep a
written record of the problems you worked on. 

T 4/9/13 
HW due: 

W 4/10/13 
HW due: 

Th
4/11/13 
HW due: 

F 4/12/13 
HW due: 

M 4/15/13 
HW due: 

T 4/16/13 
Test (100 pts.) on everything (all topics for
the entire year). Emphasis on hypothesis testing, especially these areas: ·
g.o.f. ·
2way ·
LSRL ttest 

W 4/17/13 
No class (Alumni Day). 

Th
4/18/13 
HW due: Select any 12
multiplechoice questions from your review book. Spend the first few minutes recording
the page number and problem number for each question. (Enter this table on
your HW paper. Leave some blank space to use for scratch work) Then set a
timer for 27 minutes, which is AP pace. With your remaining minutes of
homework time, look up the correct answers and mark corrections in a
different color. 

F 4/19/13 
HW: Same as yesterday (12
more multiplechoice questions, 27minute timer, plus corrections). 

M 4/22/13 
No school (Phi Beta Kappa
Day). 

T 4/23/13 
HW due: Choose any 2 freeresponse
questions that you wish, either from your AP review book or from this
site. Record the source and problem number on your HW paper. Set a timer
for 26 minutes, and grade your work when you have finished. 

W 4/24/13 
HW due: Another 2
freeresponse questions, with a 26minute time limit. Follow the same
instructions as in the 4/23 calendar entry. 

Th
4/25/13 
HW due: A “#6” question,
either from your review book or from this
site. Follow the same instructions as in the 4/23 calendar entry. Time
limit for the writeup is 25 minutes. 

F 4/26/13 
HW due: Same as for
Thursday, 4/25 (i.e., another “#6” question). Set your timer for 25 minutes,
and then consult the grading rubric. Write your score on your HW paper, along
with anything useful you learned as a result. 

M 4/29/13 
HW due: AP review, freestyle.
Keep a time log and a written record of your work and corrections. Suggested
time is 70 minutes (2 of 3 days, minimum of 35 minutes each). Those not
taking the AP exam will receive full credit for 35 minutes or more of logged
problems. 

T 4/30/13 
HW due: Continue working
your AP review problems. 

W 5/1/13 
HW due: Write another 35
minutes’ worth of AP review problems (multiplechoice or freeresponse, your
choice). Be sure to log the page number and problem number for each one that
you do. Timing is 2 minutes and 15 seconds for each MC problem, 13 minutes
for each “regular” FR problem, and 25 minutes for each “projecttype” FR
problem. The longer FR problems are always #6 if you use a practice or actual
AP exam. 

Th
5/2/13 
Giant Quiz (70 pts.) in AP format. There will be a mixture of MC and FR
problems, using AP timings and an APstyle scoring curve. 

F 5/3/13 
HW due: 

M 5/6/13 
HW due (optional): Continue
working each day on AP review problems. 

T 5/7/13 
HW due: Set a timer for 25
minutes and do #6
from the 2006 Form B exam. Then, read the scoring
guidelines for #6, and write corrections on a separate sheet of paper. If your score is 1 or 2, also write
a metaknowledge statement describing (1) what you
did know as you tackled the problem and (2) what you now realize you did not
know. Your assignment will be graded based on completeness, legibility, and
honesty. 

W 5/8/13 
HW due: Write another 35
minutes’ worth of AP review problems (multiplechoice or freeresponse, your
choice). Be sure to log the page number and problem number for each one that
you do. 

Th
5/9/13 
HW due: Write another 35
minutes’ worth of AP review problems (multiplechoice or freeresponse, your
choice). Be sure to log the page number and problem number for each one that
you do. 

F 5/10/13 
AP Exam, Trapier Theater.
Arrive by 11:45 (right after class), since the exam will begin early. 

M 5/13/13 
HW due: Estimate the
following probabilities. Enter your guesses in writing, and record them on a
standard HW sheet. It is not expected that you have the capability to answer
all of these questions accurately. An estimate is acceptable. Heein is
permitted to use the same HW sheet for both HappyCal
and STAtistics. 

T 5/14/13 
No additional written HW is
due today. 

W 5/15/13 
HW due: 

Th
5/16/13 
Friday schedule is in effect today. 

F 5/17/13 
Thursday schedule is in effect today. 

M 5/20/13 
15th Annual Field Trip to the National Cryptologic Museum, Fort Meade, MD. Bus departs at 8 a.m. from near the intersection of
Garfield St. and the service road near Grant Meadow. We will return at
approximately 1 p.m. after a guided tour of the museum and an interactive
lecture by a working NSA mathematician. Regular
school dress code is required. 

T 5/21/13 
7:25 a.m.: It’s JBAM
a at McDonald’s Week! 

W 5/22/13 
7:25 a.m.: It’s JBAM
b at McDonald’s Week! 

Th
5/23/13 
HW due: Excelcise
(Sam, Trevor, Frank, and James only). 

F 5/24/13 
Last day of classes. 

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 4/1/2012 if you desire extra credit
 Washington Statistical Society Curtis Jacobs Memorial Prize,
deadline 5/4/2012
 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 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
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