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W 9/3/08
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First day of school.
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Th 9/4/08
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HW due:
1. Send me an e-mail with your name as part of the body of the message, so
that I can tell who sent it. Be sure to begin your subject line with __D (underscore,
underscore, D) so that it cuts through the fog of e-mail clutter.
2. Read pp. 4-15 in the textbook.
3. Read the HW guidelines. No written HW is due
for today, but I want you to know what the requirements are for the future.
Reading notes, which would normally be required whenever there is a reading
assignment, are optional this time.
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F 9/5/08
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HW due:
1. Read pp. 18-22, 24-25. Reading notes are required.
2. Write #1.14, 1.16, 1.17. Working together is allowed, but no outright
copying is permitted. Follow the HW guidelines.
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M 9/8/08
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HW due: Read pp. 30-42 (reading notes required, as
always); write #1.32, 1.34.
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T 9/9/08
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HW due: Read pp. 43-46, summary on 47-48, review on
51-53; write #1.49 and the following essay question:
1. Describe in your own words how to determine the outliers (using the “1.5
IQR rule described in the text) in the following data set. Complete sentences
are required. Also state the mean and standard deviation, using proper
notation.
{15, 35, 47, 58, 61, 65, 68, 70, 72, 72, 73, 75, 77, 81, 84, 86, 87, 91, 93,
94, 94, 108}
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W 9/10/08
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HW due:
1. Read the “Quick Study” column in the Health section of Tuesday’s Washington Post. For those who may not
have a subscription at home, the column is also available on the website for
9/9/2008. This week’s article covers three topics: skin cancer, stroke, and
laser surgery. There will be a quiz on the reading: open notes, but your
notes must be handwritten. Note:
This is a recurring Wednesday assignment, as described at the top of the
“Schedule at a Glance” section on the STAtistics Zone.
2. Read pp. 66-79, including Examples 2.1 and 2.2 on p. 68 and p. 75. Since
you do not need to read the exercises, the actual amount of reading is only
about 9 pages.
3. Write #2.12 on p. 79. A sketch is required for full credit.
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Th 9/11/08
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HW due: Read pp. 83-89, including all examples;
write #2.22, 2.24. Sketches are required for full credit.
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F 9/12/08
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HW due: Project proposal and proposed timeline for group project #1.
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M 9/15/08
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HW due: Read pp. 90-97 and the chapter review on pp.
100-101. You may omit Example 2.10, but read everything else, and especially
be sure to work through Example 2.11 on p. 96. There is no additional written
work due, but I will check your calculator to make sure you have learned how
to display the three types of graphs shown on p. 96. Keystrokes are given
below. You will need to practice them several times so that you have good
facility with them.
Warning: No moaning is permitted.
If you can operate a cell phone or an iPod, you can do this!
To load the data into list L1: [STAT] [ENTER] followed by the
instructions below.
1. If L1 already has entries in it, place the cursor on the “L1”
label in the top row (not under L1, on
it!) and press [ENTER] [CLEAR] [ENTER].
2. If, on the other hand, L1 does not already have entries in it,
then all you need to do is place the cursor on the blank entry underneath the
“L1” label.
Regardless of which of the above procedures you followed (1 or 2), your
cursor should now be on the blank entry underneath the “L1” label. The status
line at the bottom of the screen should say L1(1)=.
Now, key in the 15 data values on p. 35. Press [ENTER] after each one. The
first entry is 20, and the last entry is 86.
Press the yellow button [2nd] followed by the button to the right of it
[QUIT]. At this point, you should be at the calculator’s “immediate” mode: a
standard full-screen display that allows you to use the calculator as a
calculator.
Press [2nd] [STAT PLOT]. (Note: By
[STAT PLOT] I mean the button directly above the yellow [2nd] button. This
button is labeled Y= but has a yellow label [STAT PLOT] above it, which is
the active function after you have pressed the [2nd] button.)
Press 4 [ENTER] to disable all stat plots. Then press [2nd] [CATALOG] [TAN],
and press the [up arrow] key 8 times. (The FnOff entry should be
highlighted.) Then press [ENTER] [ENTER] to turn all function plots off.
Then press [2nd] [STAT PLOT] again to get back into the stat plot menu.
Now, press 1 to modify the first stat plot. You will then need to press
[ENTER] to turn this stat plot on, since you turned everything off a minute
ago. Under the “Type:” heading, highlight the picture that looks like a
mini-histogram and press [ENTER].
Set Xlist to be L1 and Freq (frequency) to be 1. Then press [ZOOM]
9 to display the first chart shown on p. 96. (The ninth zoom menu choice, if
you want to scroll down to see it, is ZoomStat, which means that the stat
plot will be shown properly on the screen.)
To display the second chart on p. 96, press [2nd] [STAT PLOT] [ENTER] [down
arrow] [right] [right] [right] [ENTER] [ZOOM] 9.
To display the third chart on p. 96, press [2nd] [STAT PLOT] [ENTER] [down
arrow] [right] [right] [right] [right] [right] [ENTER] [ZOOM] 9.
You will have to practice these steps, especially the last part involving the
normal probability plot (a.k.a. normal quantile plot, NQP). If you can
demonstrate competence with all 3 types of graphs, you will earn a triple
homework credit (4 + 4 + 4 points).
The rule for NQP interpretation is that if the NQP is relatively straight,
the distribution is approximately normal. If the NQP bends to the right as
you scan with your eyes from left to right, then the distribution is skew
right. If the NQP bends to the left as you scan with your eyes from left to
right, then the distribution is skew left.
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T 9/16/08
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Test #1
(100 points). Statistics is a
cumulative subject, in which many (though not all) topics build upon those that
went before. Therefore, all tests are at least somewhat cumulative. For
example, you must know how to compute areas under the z curve all year long. The material to be emphasized will be
announced before each test. Test numbers (#1, #2, etc.) do not correspond to
chapter numbers in the textbook.
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W 9/17/08
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HW due: Read pp. 107-114. If necessary, restore your
L1 contents from the 15 entries on p. 35, so that you can
demonstrate proficiency with producing the three graphs on p. 96. Also,
remember that we will have a quiz on the Washington
Post recurring assignment.
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Th 9/18/08
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HW due: Read Example 3.5 (pp. 114-115), pp. 117-122,
and pp. 128-133. Also play (this is required) enough rounds of the correlation
game to avoid embarrassing yourself in a competition.
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F 9/19/08
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HW due: Read summary on pp. 134-135 and all of
137-142; write #3.27, 3.28, 3.30.
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M 9/22/08
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HW due: Revised proposals and survey instruments
will be collected from each group leader. (If the group leader is absent, he
must designate a deputy to turn these in.) Group leaders will receive e-mail
with specific instructions over the weekend.
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T 9/23/08
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HW due: Read p. 144, p. 145 (top half only), pp.
149-150, and pp. 151-156; write #3.37.
Note: Project leaders should send
me their survey instruments (.DOC or .RTF files) as soon as possible so that
I can make copies. Try to send these in before 10:00 p.m. Monday if you can.
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W 9/24/08
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HW due: Read pp. 157-160 (including examples but not
the exercises), 164-165; write #3.52.
Group leaders: Give your survey envelopes to me for safekeeping, or bring
them to class today for our grand sorting-out party.
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Th 9/25/08
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HW due: Work on data entry (using Microsoft Excel),
and begin analyzing your survey data. Please note that groups 1 and 3 left
more than a dozen survey forms in the classroom, including some with yellow stickers.
You can pick those up from me in my office.
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F 9/26/08
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No class (Form VI retreat).
HW due: No written work is due for students who attended the Political
Roundtable at the Cathedral yesterday evening. If for some reason you were
unable to attend, then the following problems are due Monday: #3.58, 3.60.
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M 9/29/08
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HW due: #3.58, 3.60
(required only from those who did not attend the Political Roundtable last
Thursday). Everyone else should work on the group project and should be sure to
catch up on previously assigned HW.
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T 9/30/08
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Due date for Group Project #1.
In class: Review for test.
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