class weblog

 
How many pieces of chalk did I break at the blackboard this semester, that's the important question... Anyone know the answer??? D.
posted by David Madigan at 11:36 PM

 
The final exam will take place on May 13th, 6:30pm-8:30pm in the usual classroom. D.
posted by David Madigan at 11:33 PM

 
I just posted the solution to quiz 3. D.
posted by David Madigan at 11:14 PM

 
I think those suplementary questions follow the order of the sections in the chapter, so it shouldn't be too hard to figure out which questions are relevant. For example, 8.10 Q 10 is relevant but 8.10 Q11 is not (since it talks about Uniformly Most Powerful tests). D.
posted by David Madigan at 7:25 PM

 
I believe these are the sections we covered

Chapter 6: all except 6.8
Chapter 7: all
Chapter 8: all except 8.3, 8.4, 8.8, and 8.9 (we touched on 8.9)
Chapter 9: we covered 9.1, 9.3, 9.5
Chapter 11: not included in the exam.


posted by David Madigan at 7:31 PM

 
I'm away until Tuesday. See you then! D.
posted by David Madigan at 8:58 AM

 
OK, the quiz will only cover Chapters 8 and 9. D.
posted by David Madigan at 6:31 AM

 
I just posted the new homework assignment. That will be the last assignment. I will count your best 8 homework scores out of 11 towards your grade (subject to a minimum of 8 homework scores). D.
posted by David Madigan at 10:44 PM

 
Correction
The student who said I was wrong about the degrees of freedom for the three dimensional case was correct! If di denotes the number of levels of each dimension, i = 1,2,3, then (d1-1)*(d2-1)*(d3-1) is the number of degrees of freedom for the test of no-three-way interaction. D.
posted by David Madigan at 10:06 PM

 
I just posted the solution to homework 9, the new homework assignment 10, and some lecture notes.


BTW, I said in class tonight that the likelihood ratio statistic has a chi-square one distribution for large n. I should have said that two times the log of the likelihood ratio statistic is chi-square one. The posted lecture notes are correct. D.

posted by David Madigan at 11:19 PM

 
Never mind. My home fax is working just fine now. Please fax homework to 973-665-1287. D.
posted by David Madigan at 7:21 PM

 
My home fax is mis-behaving. Try faxing to 775-269-3550 instead if you are having problems. D.
posted by David Madigan at 6:55 PM

 
Somehow my last post is garbled. Anyhow, you have until Friday to hand in homework 8 via email or fax to 973-665-1287. I have yanked the solution to homework 8 which made a brief appearance on the web site last night!

Correction I said something incorrect in class - I said the Fisher Information is invariant to form of the parametrization. This is not true in general. For example, with normal data, the Fisher Information using the standard deviation is different from the Fisher Information using the variance. I was getting confused with something called the Jeffreys prior in Bayesian statistics which does have an invariance property.

posted by David Madigan at 6:59 AM

 
I just posted the solution to tonight's quiz, as well as the solution for homework assignment (number 9), some posted by David Madigan at 10:52 PM