| Friday, December 23, 2005 | |
  |
 STAT 430 COURSE GRADE
DISTRIBUTION:
The decimal point is 1 digit(s) to the right of the | 5 | 57 6 | 69 7 | 038 8 | 157 9 | 4 |
| Monday, December 19, 2005 | |
|
STAT 830 term project grades are
available from
Gradebook. (The grading order was randomized!) Final course grades have
been computed according to what was
explained on an earlier e-mail from October.
I know you all put in a ton of time to develop the experiment, analyze
the data, and put together the report. I highly encourage you to polish
up the product (according to the comments I wrote on your report) and publish it on your
personal website! I'm sure many web surfers would enjoy reading
your work as much as I did. Please see the announcement below regarding contacting me between now and mid-February. Happy Holidays! |
| Thursday, December 15, 2005 | |
|
I will be away from campus until
Feb 20, 2006. If you wish to view your final exam, please visit the Mathematics Undergraduate Office (MUO) sometime during the Winter term. If you wish to have your course grade explained, you may still e-mail me on this Angel website. However, I will NOT respond to questions regarding the grading of the final exam. Have a wonderful winter break. |
| Friday, December 09, 2005 | |
|
Stat 430 Final Exam grades have been posted on
Gradebook. The Final Exam was scaled out of 44 instead of 45 (as stated
on the exam). Below are distributions of the 11 values: FINAL EXAM: The decimal point is 1 digit(s) to the left of the | 5 | 289 6 | 7 | 025 8 | 0589 9 | 7 |
|
Check your Angel e-mail for post-exam miscellanea. Small typo on Exam Q2 solutions have been corrected. |
| Friday, December 02, 2005 | |
|
HW7 solutions are available. Common mistakes to avoid on the exam / project: Considering residuals to look good when in fact you haven't looked at all aspects of the residuals. E.g. almost all of you
committed the following mistake:
Ignoring info from
previous (seemingly inadequate) fits.
Factors A, B, C, D, E, ...
What's wrong is you haven't considered (6) residuals vs.
B, (7) residuals vs. D, (8) residuals vs. E., etc. If you don't look at
those, how do you know that factors B, D, E, ... shouldn't be in
the model?Fit1 = A*C. Plot (1) histogram of residuals, (2) residuals vs. index, (3), residuals vs. fitted, (4) residuals vs. levels of A, (5) residuals vs. levels of C. All (5) plots look good, so conclude Fit1 is good. E.g. the following is bad:
Factors A, B, C.
Fit 1 = A only. Fit 2 = A*B. Fit 3 = A+B. Fit 4 = A*B*C. Fit 5 = A*B+C. Fit 6 = A+B*C. ... Examine residuals for all possible fits and choose the one that gives the best looking residuals. |
| Tuesday, November 29, 2005 | |
|
Thanks to Lei's persistence in the issue, the Handout on Baseline
Constraint
has been modified. Basically, R isn't doing anything out of the
ordinary. Indeed it treats the baseline as having everything at the "-"
level! (Sorry for the confusion from before.) It's just that what is
labeled "-" in the text is different from what is labeled "-" by R. |
| Thursday, November 24, 2005 | |
|
Last assignment (#7) is now available. |
| Wednesday, November 23, 2005 | |
|
Thanks to Ted's and Fei's questions after
today's lecture, I need to clarify what the baseline constraint means
in the context of a 2^k factorial. Please see the new handout
under "Course Files -> Handouts -> Baseline Constraint." |
| Monday, November 21, 2005 | |
|
Stat 830 Term Project
Teams:
Hui Zhao is in search of a teammate. If you're interested, please
e-mail me under the In Touch tab. All teams will be finalized this
Wednesday. If you already know your team now, you should e-mail me and
I'll assign you a topic. |
| Friday, November 18, 2005 | |
|
Thanks to Hui's e-mail question, I've posted a new handout under
"Course Files -> Handouts ->  Handout
on ANOCOVA" to clarify a few points we never discussed in class. |
| Thursday, November 17, 2005 | |
|
STAT 830 TERM PROJECT
has been posted in the "Assignments and Solutions" folder under the
COURSE FILES tab. Please decide on your team ASAP. I will confirm the
finalized teams in class on Wed Nov 23. Each team will then randomly
select one of the 4 design topics listed. If time permits, each team
will give a 10-minute oral presentation on the scheme of their
experiment (not results) in the last two classes of the term. |
| Monday, October 31, 2005 | |
|
ATTN: STUDENTS TAKING SOA
EXAMS THIS OR NEXT WEEK I've verified that the following students are involved:
|
| Monday, October 17, 2005 | |
|
|
| Friday, October 14, 2005 | |
|
|
| Friday, October 07, 2005 | |
|
(1) Full solutions for
Assignment 3 have been posted. (2) An outline of what was discussed in this week's tutorial is posted (see Course Files). (3) Please bring Two-Way Factorial handout to Wednesday's class. |
| Wednesday, October 05, 2005 | |
|
Unclaimed Assignments 2 are outside my office
for pick-up. |
| Monday, October 03, 2005 | |
|
Please bring a copy of the "Two-Way w/ Random
Blocks, No Interactions" handout to Wednesday's class. |
| Friday, September 30, 2005 | |
|
Assignment 3 has been finalized
-- new question added!!
|
| Wednesday, September 28, 2005 | |
|
Please bring a copy of the "Two-way layout w/out
interactions" handout to Friday's class. ALSO: Solutions to HW2 text questions are posted. |
| Monday, September 26, 2005 | |
|
Please bring a copy of the R-examples handout on
One-Way w/ Random Factor to Wednesday's class. ALSO: Solutions to HW2 non-text questions are already posted. |
| Friday, September 16, 2005 | |
|
Assignments will be due bi-weekly starting with
Assignment 3 (due Friday Oct 7). |
| Thursday, September 15, 2005 | |
|
Davis Library now has the 6th edition of the
course text available for 1-hour loans. |
| Tuesday, September 13, 2005 | |
|
Please print out a copy of the "One-Way Layout"
handout
(Course Files -> Examples in R -> One-Way Layout) and bring it to
class. There is a slight chance we'll get to it on Wednesday, but we'll
certainly talk about it on Friday.
Also, a copy of the text (6th Edition) has been requested to be placed
on reserve, but it is currently in transit. I shall let you know as
soon as it is available for loans from Davis Library. |
| Monday, September 12, 2005 | |
|
The Open Tutorial is scheduled for Thursday
2:30-3:20pm;
classroom TBA. First tutorial is Sep 22.
Apologies to those who can't make it to this time slot. I'll post an
outline of material covered. Details will be available by appointment
from Alice (the TA). |