Subject:
36-303 Comprehensive Compilation
From:
"Christopher Peter Makris" <cmakris@andrew.cmu.edu>
Date:
Tue, 15 Feb 2011 22:32:42 -0500
To:
bj20@andrew.cmu.edu

Dear Professor Junker,

Hopefully this email includes/summarizes all the recent information from
the past 24 hours between the two of us that I was supposed to send you!
If I've left anything out, please let me know.

------------------------------
Assignments:

-Attached is the I4 "Population, Frame, & Nonresponse Plan" that we were
supposed to turn in for today's class. I had brought a hard copy to class
today since I am the "final editor" for everything our group submits, but
didn't realize we were supposed to just email this one. My apologizes

-In a previous email (sent this morning, not attached here), I had sent
our "Team Working Agreement," which we also submitted this afternoon
signed in hard-copy form

-Since we thought it was due today, our team had also completed a draft of
the IRB form (attached here). I think you mentioned in class today that
you would be willing to check a draft of this before we submit the final
copy. If you wouldn't mind, that would be greatly appreciated since there
were a few questions we weren't sure if we were answering correctly. Also
attached are our team's Human Subjects Research proofs (in a .zip folder).
Some of us took these quizzes from previous classes. These are what we
plan on attaching to our group's IRB form to complete it
------------------------------

------------------------------
Grading:

On Homework #3, many students lost points on questions #2a, #2b, and #3a.
Summaries of what we (or at least I) wrote for these questions are listed
below:

-Question #2a: Most students lost 4 points for writing the following proof:

E[aX + bY + c] =
= E[aX] + E[bY] + E[c] (by Linearity Of Expectation) =
= aE[X] + bE[Y] + c
(Q.e.d)

-Question #2b: Most students lost 4 points for writing the following proof:

Var[aX + bY + c] =
= Var[aX + bY] =
= Var[aX] + Var[bY] + 2Cov[aX, bY] =
= a^2Var[X] + b^2Var[Y] + 2Cov[aX, bY] =
= a^2Var[X] + b^2Var[Y] + 2(E[abXY] - E[aX]E[bY]) =
= a^2Var[X] + b^2Var[Y] + 2(abE[XY] - abE[X]E[Y]) =
= a^2Var[X] + b^2Var[Y] + 2ab(E[XY] - E[X]E[Y]) =
= a^2Var[X] + b^2Var[Y] + 2abCov[X,Y]
(Q.e.d)

-Question #3a: Most students lost 3 points for writing that E[lambda-hat]
= lambda somewhere within their proof
------------------------------

------------------------------
Spring Break:

Since I will be driving back home, I will be able to stay in town as long
as I want to. I probably will leave sometime on Saturday evening or Sunday
morning, but this is not set in stone. Therefore, I would have no
conflicts and would absolutely love introducing someone to the Carnegie
Mellon campus! Just let me know any necessary details when/if this comes
to fruition.
------------------------------

Thanks so much!!! :)

Sincerely,
-Christopher Peter Makris

Population, Frame, & Nonresponse Plan.docx
	
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IRB Application.doc
IRB Application.doc
	
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Human Subjects Research Proof.zip
Human Subjects Research Proof.zip
	
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