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)
Written assignments should follow the HW guidelines.


Th 1/23/14

Classes resume.

In class: Quiz on b1, multiple-choice group quiz. (Everyone earned 10/10 on the second quiz.)


F 1/24/14

No additional HW due.

In class: Quizzes on b1 and r2.


M 1/27/14

Mozart’s birthday: No additional HW due.

In class: Bias.


T 1/28/14

No additional HW.

In class: Excel training.


W 1/29/14

HW due: Practice the Excelcise (see 10/28/010 calendar entry).

In class: Possible double quiz on recent class discussions and your Excel skills. You are not expected to be an expert yet, but it will be immediately clear whether you have practiced or not.


Th 1/30/14

HW due: Perfect your basic Excelcise skills, including use of the F5 (goto) key.

In class: Excelcise timing drill. The time limit is 5 minutes.


F 1/31/14

HW due: Practice, practice, practice.

In class: Final chance to pass the Excelcise during class. If you fail today, you will be forced to repeat until you succeed (next week, before or after school).


M 2/3/14

Room MH-102 will be available for the entire period for anyone who wishes to take the Excelcise. No additional new material will be covered today.


T 2/4/14

HW due:

1. Read pp. 495-505. Reading notes are required, as always.

2. Write pp. 492-495 #9.11-9.15 all, 9.26, 9.28, 9.29. Some of these were previously assigned, but you need to complete all 8 problems. You have plenty of time to do this assignment and plenty of time to ask for help if you are stuck.


W 2/5/14

HW due: Write pp. 505-506 #9.30abcdefg, 9.31abcdef, 9.33, 9.34abc, 9.38abcd.


Th 2/6/14

HW due: Write pp. 507 #9.40, 9.42, 9.43.


F 2/7/14

HW due: Read pp. 525-529; write p. 508 #9.46, 9.47.


M 2/10/14

HW due: Read pp. 531-534; write pp. 534-535 #10.12, 10.13.


T 2/11/14

HW due: Write pp. 536-537 #10.18, 10.22abc.


W 2/12/14

HW due: Get caught up on earlier assignments from this semester, any or all of which may be rescanned. No excuses! The general level of presentation—especially of problems already discussed and corrected—needs to be higher than what was seen yesterday from most of the randomly audited papers.

Optional: Read this recent Wall Street Journal article.


Th 2/13/14

HW due: Review problems as listed below. If school is canceled, these will be collected Tuesday, 2/18, before you take your test. If 3 or more students send e-mail to Mr. Hansen by midnight Sunday containing reasonably complete solutions to the problems, Mr. Hansen will post a solution key on Monday that everyone can use to help with studying for the test. A scanned image file (PDF, BMP, TIF, or JPG) of your handwritten homework is required. If you don’t have a scanner, you can use a smartphone to take a photo of your paper. “Texty” computer notation—sqrt(x) for the square root function, names such as  and  written as “xbar” and “sigma,” exponentiation shown with a caret sign, and so forth—will not be accepted, since those notational crutches are not allowed on tests or on the AP exam.

1. An SRS of morning commute times for residents of the Oakcrest subdivision produces the following data (in minutes):

35, 45, 19, 12, 11, 11, 5, 4, 7

(a) Compute and interpret a 95% confidence interval for the mean morning commuting time of Oakcrest residents. Show your work.

(b) What concerns would you have in publishing your C.I. from part (a) as a fact in the local newsletter? In other words, how robust are your findings?

2. Mr. Finkel has decided that instead of grading 21 quizzes from each of his 142 students (a total of 2982 quizzes), he will instead pick an SRS of 5 quizzes from each student. Each quiz is worth 10 points. If the SRS of 5 quizzes for a particular student has a total score of less than 20 points (i.e., a mean below 4), Mr. Finkel will write a warning comment to the student’s parent and will record a quiz score of “needs improvement” in his gradebook. If the score is 20 or above for the SRS of 5 quizzes, Mr. Finkel will simply record a quiz score of “passing” in his gradebook.

(a) State H0 and Ha for suitable hypotheses regarding the student’s true mean quiz score, given that the purpose of this exercise is to identify students who are in academic trouble.

(b) What, exactly, constitutes a Type I error in the context of this problem?

(c) What, exactly, constitutes a Type II error in the context of this problem?

(d) Which type of error is of greater concern to Mr. Finkel? to his students? to the parents? Explain your reasoning in each case. At least one or two complete, grammatical sentences are expected for each answer.

3. A pilot survey reveals that approximately half of the students in the Lakeland Public School District love the Flappy Bird game. However, there is a large and vocal group that hates the game. Few people are undecided. There are more than 20,000 students in the district.

(a) How many students must be polled in order to estimate the percentage of “Flappy Bird haters” within plus or minus 5 percentage points with 95% confidence? Show your work.

(b) What assumptions need to be made in order for the procedure you performed in part (a) to be valid? Are these assumptions met? Show all supporting evidence.

(c) Suppose that an SRS of 550 students from the district includes 282 who hate Flappy Bird. Compute and interpret a 90% confidence interval for the percentage of Flappy Bird haters.


F 2/14/14

No school (teacher professional day).


M 2/17/14

No school (holiday). Since 3 students did indeed send solutions (at least a reasonable effort) before midnight last night, a solution key is available for your studying pleasure: page 1 page 2 page 3.


T 2/18/14

Test (100 pts.) on all recent material.


W 2/19/14

HW due: Correct yesterday’s test completely. Do all problems, even those that you are certain you answered correctly on the test. (Note that the wording has changed slightly in a couple of places.) Conferring with classmates is fine, but no copying is allowed. Correct answers are expected.


Th 2/20/14

HW due: Read pp. 537-548. Reading notes are required, as always.


F 2/21/14

Makeup Test at 7:00 a.m. in MH-102. This is the only time that the makeup test will be offered, unless you contact Mr. Hansen with at least 12 hours’ advance notice (e-mail preferred).

HW due: Read pp. 550-558; write #10.23-10.27 all, 10.45-10.48 all.

Note: You must show work and/or setup for each question. However, it is acceptable to organize your work in a table so that you can cut down on the amount of repetitive writing if you wish. As examples, #10.47dfg are shown below.


M 2/24/14

HW due: Read the PHA(S)TPC procedures and the STAT TESTS handout, and be prepared for a quiz on both readings. The quiz will be closed-notes. For the STAT TESTS handout, you should read the entire handout and thoroughly memorize lines 1, 2, 5, 7, 8 and A. (The rest need to be memorized later.)


T 2/25/14

No class (Diversity Day). A double assignment is posted for tomorrow.


W 2/26/14

HW due:

1. Read pp. 562-567. Skip pp. 568-570.

2. Read pp. 571-574 especially carefully. If there is one “take-away” from the course, it should be an ability to read (and criticize) studies that cite statistics.

3. Criticize the methodology of the didgeridoo study described in the middle of p. 573. Assume that the sample is random and that the distribution of Epworth scale improvement scores is approximately normal.

4. Write Activity 10.2 on p. 575.

5. Write #10.77, 10.78, and 10.80 on pp. 577. Perform all steps of the PHASTPC procedures, including the “S” step in which you sketch the sampling distribution (assuming H0 is true) and mark the test statistic on the horizontal axis of that sketch.

Note: Sample writeups of #10.85 and #10.93 are posted here in order to help you with #10.77, 10.78, and 10.80. The style of writeup illustrates what is expected, even though the problems are completely different. Do not write the letters PHASTPC when performing your writeup, unless you mark them out with an “X.” (The letters PHASTPC will confuse the AP graders, but anything marked with an “X” is ignored.)


Th 2/27/14

HW due: Complete all previously assigned HW.

In college, it is reasonable to assign double assignments when the class does not meet for a longer-than-usual gap. However, it is clear that the result of yesterday’s double assignment was not satisfactory. Go back and patch up all your assignments for the past week. Correct answers are expected, since even the even-numbered problems (e.g., #10.78 and #10.80) can quickly be answered by punching buttons. The only thing that takes a significant amount of time is writing out the PHASTPC steps, as illustrated here. If you wish to “scaffold” your work by writing P, H, A, S, T, P, C lightly in the margin of your HW paper, that is fine for now. If you are unable to complete the assignments, even after seeing the sample solutions, then (at a minimum) you should be contacting classmates or Mr. Hansen with your questions.


F 2/28/14

HW due:

1. Make sure that the problems due 2/26 are ready to be turned in for grading. Since sample answers are posted (see 2/26 and 2/27 calendar entries), you should really be able to do this. Nobody—zero students—contacted Mr. Hansen between 2/26 and 2/27. Therefore, it is reasonable to conclude either that nobody had any remaining questions on procedure or that those who did had no pressing desire for a good HW grade.

2. Read this NPR story (or listen to it, if you prefer) and be prepared for a short open-notes comprehension quiz.

3. Answer the essay questions below, using complete sentences, good grammar, and good spelling:

(a) What do you think of the central claim of the NPR story, namely that humans respond better to anecdotes than to statistics? Do you agree or disagree? Give justification for your opinion.

(b) What do you think of Mr. Segal’s challenge that he issued near the end of the panel discussion at the Diversity Forum on Tuesday? (If you weren’t there, you’ll have to contact a classmate and ask for an explanation.) Is Mr. Segal saying that we shouldn’t rely on other people’s collected observations and should instead trust our own experience? Or is he saying something different?


M 3/3/14

Snow day.


T 3/4/14

HW due: Read pp. 583-597; write #10.79 on p. 577, using full PHASTPC procedures.


W 3/5/14

NORMAL CLASS DAY, EXCEPT ON FRIDAY SCHEDULE. The event that Mr. Hansen was originally scheduled to attend today has been canceled.

HW due: Read pp. 606-614.


Th 3/6/14

HW due: Write #11.29, 11.30, and 11.31 on p. 615. Full PHASTPC procedures are needed for #11.31.

Suggested viewing: Check out this new video (thanks to JD for the link) that seems to find evidence for the existence of the “hot hand” in basketball, based on a more sophisticated new data set. The notion of the “hot hand” had previously been dismissed as bunk by statisticians who had studied the question.


F 3/7/14

HW due: Get fully caught up on all previously assigned problems. PHASTPC means that all 7 steps must be evident.


M 3/10/14

HW due: Get some good sleep! Enjoy the beautiful weekend weather!


T 3/11/14

HW due: Write #11.43abcd on p. 619. Work is required, and full PHASTPC steps are required for part (c). Part (d) is given below.

(d) When you made the sampling distribution sketch in part (c), what was the statistic whose sampling distribution you were sketching?


W 3/12/14

HW due: Read pp. 619-626; write #11.44 and 11.45 on p. 626, using full PHASTPC procedures.


Th 3/13/14

HW due: Read pp. 629-632, 633-634; write #11.65 and #11.72 on pp. 635-637.


F 3/14/14

HW due: Read pp. 647-656; write #12.1 and 12.2 on pp. 656-657, and (if you have not already done so) enlarge yesterday’s HW to include full PHA(S)TPC procedures. The “S” is optional but recommended.

Hint: For #12.1 and #12.2, feel free to use your calculator’s  function or the tables on pp. 828-829. Or, if you don’t want to get confused by the book’s tables, which differ from the one you will use on the AP exam, visit the AP Statistics Course Description and use the table found there on p. 18 (the last page of tables). If you make a printout, you have to request p. 22.


M 3/17/14

Snow day (no school). Happy St. Patrick’s Day!


T 3/18/14

HW due: Read pp. 660-671, and bring a pack or two of Pretzel M&M’s to class. Reading notes are required, as always.

In class: M&M’s exercise with chi-square tests; preparation for tomorrow’s quiz.


W 3/19/14

HW due: Read this recent article, which proves (does it not?) that you already know more than whoever wrote the “Results” section of this abstract of a scholarly article from a prestigious medical journal. Well, maybe the proof is not immediate. To prove that you do, in fact, know more than the author of the “Results” paragraph of the JAMA abstract, rewrite the offending final sentence of the “Results” paragraph. You may split the sentence into 2 sentences if you wish.

In class: Big Quiz on all recent material.


Spring break. Your quarter grade will be e-mailed to you by approximately March 31 or April 1.


M 3/31/14

HW due: Read How to Lie with Statistics (or, if you borrowed a longer book from the STAtistics library, read that instead). There will be a quiz tomorrow.


T 4/1/14

Quiz on How to Lie with Statistics or another book you may have borrowed during spring break. Turn your book in before you take the quiz today.


W 4/2/14

Memorization quiz on the assumptions that must be checked for the following tests:

1-sample t
1-prop. z
2-sample t
2-prop. z
chi-square g.o.f.
chi-square 2-way (independence or homogeneity of proportions)

All of these are on the STAT TESTS handout. (See links labeled AP Exam Review on the STAtistics Zone page).


Th 4/3/14

HW due: Until further notice, your assignment each night is to do a mixture of at least 35 minutes of problems from the Barron’s AP review book and/or the AP archives.

1. Keep a written record of all your work. Keep a time log for each night. Start each day’s work on a fresh sheet of paper, dated according to the due date. The first due date is 4/3/14.
2. Work is optional for multiple-choice problems. Work is required for free-response problems.
3. Legibility in free-responses problems is required. Sloppy or incomplete work will not earn credit. You must practice writing out full responses.
3. Circle your answers.
4. Try to stick to a time limit: 2 minutes and 15 seconds for each MC problem, 13 minutes for a “short” FR problem, 25 minutes for a “long” FR problem.
5. Set aside a few minutes at the end of each problem set to grade your answers against the answer key.
6. Important: Record the source for each problem (page number and problem # for Barron’s problems, or year/form/problem # for AP problems).


F 4/4/14

HW due: Barron’s AP review as described above.

In class: A quiz is likely. Quizzes of a general or MPQ nature are likely every second or third day from now until the AP exam.


M 4/7/14

HW due: AP review.


T 4/8/14

HW due: AP review.

In class: Two quizzes, one of which was dropped.


W 4/9/14

HW due: AP review.

In class: Special outdoor event.


Th 4/10/14

HW due: AP review. Another quiz is extremely likely.


F 4/11/14

HW due: AP review. Be prepared to show your notebooks and time logs.


M 4/14/14

HW due: AP review, plus at least one “vexing question” (see below).

In class: Review for test. Bring at least one “vexing question” from the book. If you have no questions that have vexed you personally, then bring a question that you think would make a good test question for tomorrow’s test. This will be scored.


T 4/15/14

Test (100 pts.) on Chi-Square and LSRL t-Tests

HW due: Mixture of AP review and studying for the test. Keep a written time log. You may split your time in any proportion than you wish (e.g., 50/50 between general AP review and focused studying for today’s test, or 100% for general AP review, or 100% for the test).

The test will be pitched for a 40-minute time limit. There may be some AP-style problems, but if there are, they will be timed and scored using AP rules (13 minutes per multi-part “short” FR problem, 20 minutes per multi-part “long” FR problem, 2.25 minutes per MC). You will be allowed to use your calculator throughout the test.


W 4/16/14

HW due: Even though there is no class today (for Alumni Day), you still need to do at least 35 minutes of AP review. Keep a written time log and a written record of the problems you worked on. Free-response problems must be legible. If you have worked more than 5 days per week, you can substitute one of your weekend days for equal credit.

Note: If you desire the bonus point for bringing spare batteries to Tuesday’s test, you must send an e-mail with a subject line that begins with 2 underscore characters. For example, you could use this as a subject line:

    __Request for battery bonus [Lastname, Firstname]

E-mails with invalid subject lines (i.e., not beginning with 2 underscores) will be discarded, unread.


Th 4/17/14

HW due: Redo the entire test from Tuesday, 4/15/2014. Do all parts of all problems, even if you are certain you did them correctly in class. Set a timer for 39 minutes, but you may go longer if you wish, and you may use your textbook and other notes if you wish. Collaboration with other students is also allowed, but COPYING (AS ALWAYS) IS PROHIBITED. Note: If you prefer to do this assignment and yesterday’s AP review assignment in the opposite order, that is permitted.


F 4/18/14

HW due: AP review problems. Keep a time log.

In class: “Core” quiz on the TPC steps.


M 4/21/14

HW due: In addition to your usual AP review (with time log), do at least 4 TPC-type problems. These will probably be collected. The 4 that were distributed in class Friday are recommended, but any other 4 from the Barron’s review book are acceptable.

The critical task, as you have learned, is to be able to identify the correct statistical test. Then, punch the buttons needed to compute your test statistic and P-value, and write a conclusion in context. Each one should take you no more than about 2 minutes. Remember, when these are cast as multiple-choice problems, you have only 2 minutes and 15 seconds on average.

In class: Another round of MPQ.


T 4/22/14

HW due: AP review with time log.

In class: Another “core” quiz.


W 4/23/14

HW due: AP review with time log.

In class: Another quiz, plus practice on identifying the type of test.


Th 4/24/14

HW due: AP review with time log.

In class: Quiz on identifying the type of test.


F 4/25/14



M 4/28/14

Practice AP Exam (70 points).

Today’s format is multiple-choice. You will have 20 problems in 45 minutes, which is exactly half the length of the real AP multiple-choice portion. Class will begin at 10:50 and will end at exactly 11:35. We use Naval Observatory time, not the STA clocks. Most of the STA clocks are nearly 3 minutes slow.

If you are not able to be in your seat, ready to begin, at 10:50, then the door will be opened exactly once, at approximately 10:55. However, no additional time will be provided.

Calculator is permitted throughout, and a formula sheet will be provided for you.

If you have an excused absence on any of the practice AP exam days, you must contact Mr. Hansen. Makeups after the fact will not be offered. If you miss one of the practice exams, it will simply be dropped, and the 2 other scores will be counted. If you take all 3 exams (highly recommended!), the lowest of the 3 scores will be dropped.


T 4/29/14

Practice AP Exam (70 points).

Today’s format is free-response, short style. You will have 3 multi-part problems to answer in 39 minutes. Class will begin at 10:55 and will end at exactly 11:34.

If you are not able to be in your seat, ready to begin, at 10:55, then the door will be opened exactly once, at approximately 11:00. However, no additional time will be provided.

Calculator is permitted throughout, and a formula sheet will be provided for you.


W 4/30/14

Practice AP Exam (70 points).

Today’s format is free-response, long style. You will have 2 multi-part problems to answer in 50 minutes. Class will begin at 10:45 and will end at exactly 11:35. If you cannot arrive by 10:45, the door will be opened exactly once, at 10:50, and you will be admitted at that time. You may then stay until 11:40, but no note will be provided for your next class.

Calculator is permitted throughout, and a formula sheet will be provided for you.


Th 5/1/14

HW due: Do the 3 problems from Tuesday’s free-response “short format” test. Set a timer for 39 minutes. The links were sent to you by e-mail. Optional: If you have time, go ahead and grade your answers as well.

Required: Bring all evidence of work to class in written form, with time log.


F 5/2/14
F 5/9/14

HW due each day: Study for your AP exam. Review problems, textbook review, and Must-Pass Quiz study are all acceptable uses of your time. Keep a time log. Keep a dated record of all your written-out answers on filler paper, not in the review book itself.


F 5/9/14

In class: Last-minute AP questions. Those who are taking the AP exam in the afternoon will be excused from class upon submission of an e-mail request before class starts.


M 5/12/14



T 5/13/14



W 5/14/14



Th 5/15/14

MPQ, with graded kick-off quiz at the start of class.


F 5/16/14



M 5/19/14

MPQ. With any luck, Mr. Joseph Morris (STA ’62) will sit in and cheer us on. Congratulations to Jackson, both Nathans, Jack H. G., and Sammy. Time is running short for the other 13!

You must pass.


T 5/20/14

Guest Speaker: Mr. Fred Richards, father of Peter Richards ’14, will speak on the subject of big data and data analytics.


W 5/21/14

Field Trip to the NSA/National Cryptologic Museum. Coat and tie are not required (per yesterday’s lunch announcement by Headmaster Wilson), but please wear a shirt with a collar. We are ambassadors of STA and want to represent the school well. Bus departs at 8:00 a.m. from the service road near the Martin Gym. We will be back on campus by 1:15 p.m., in time for lunch.

Note: If you are unable to go on the field trip, you must do this alternate assignment (do problems 1-8 all, and ignore the indications about “Form”). Turn in your alternate assignment at lunch to Mr. Hansen at table 38. The alternate assignment will be graded.


Th 5/22/14



F 5/23/14



M 5/26/14

No school (Memorial Day).


T 5/27/14

Final Exam, 8:00–10:00 a.m., MH-314. Attendance by everyone who still needs to pass the MPQ is required. Attendance by spectators is encouraged. We may move to MH-102 if the examinees wish to do that, but the view is better from MH-314. Check for notes on the doors if you are having trouble finding the room where the MPQ action is.



Essential Links:
STA School Handbook
-- College Board: AP Statistics Course Description
-- College Board: more than 100 AP free-response 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 on-line 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 Must-Pass Quiz for Statistics: doubles as a review for the AP exam

TI-83 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 (Chi-Square Goodness of Fit) program also written by Mr. Hansen and the Class of 1999
-- CSDELUXE (Chi-Square 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 (follow-on to a stat teacher workshop I attended on 12/5/2001)
-- David Pachner’s statistical test and confidence interval files for the TI-83 (added 4/16/2001; not reviewed by Mr. Hansen for accuracy)
-- TI-83 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 t-values 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 (2005-06)
-- Results (1998-99)
-- Results (1999-2000)
-- Results (2000-01)
-- Results (2005-06)
Opinion Survey
-- Assignment (2000-01)
-- Results (1999-2000)
-- Results (2000-01)
Experimental Design and Execution
-- Assignment (2000-01)
-- Results (1998-99)
-- Results (2000-01)
Pairs Project on How to Lie With Statistics and P-value Calculations
-- Assignment (2000-01)
-- List of Partners (2000-01)
Critique of a Scientific Article
-- Assignment
AP Review
-- D period (1998-99)
-- F period (1998-99)

Test #1 (Chapters 1-2 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 #1D--has 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 1999-2000
-- Answers to practice test (the practice test was handed out in hard copy form on 11/15/1999)
-- Take-home 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 7.1-7.3 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 8.1-8.3 of old old textbook, plus Chi-Square GOF):
-- Answer key for sample test problems
-- In-class portion
-- Take-home portion

Test #8 (Section 9.1 of old old textbook, plus Geometric Probability Distributions):
-- Take-home test due Wednesday 4/28/1999
-- Answer key (not yet released)

AP Exam Review
-- Real sample AP questions from the College Board
-- TI-83 Function Summary
-- TI-83 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

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Last updated: 24 May 2014