Assignment #1
- PPol 603
- Due: Thursday, 6 September 2012, 9:30 a.m.
Type up your answers.
Read the section in the syllabus on Academic Honesty and Plagiarism
(here)
to make sure you are giving proper credit to those you work with and/or the text(s).
Solve the following problems. Show all of your work, but keep your answers concise.
For Problems 1-3, showing your work is writing the commands in the .do file. For
Problem 4, showing your work is showing the steps you took to obtain the answer.
On Problem 4, highlight your (final) answer
to distinguish it from your other numbers and text. Include a copy of your input or
output,
when appropriate. However, do not include unnecessary output, and format any output
so that it is easily readable. (For example, convert Stata output, logs and do-files
to a small fixed-width font, such as Courier 8 or 10, with single-spacing.)
Explanation
includes statistical and substantive explanation (explain so that a statistical
layperson can understand it, and so that a
statistical analyst will see your erudition).
- {25 points} Download the Stata .do file found
here. After you download the
file, change the file extension from .txt to .do (i.e. from assign1p1.txt to
assign1p1.do). Follow the directions in the file.
- {25} Download the Stata .do file found
here. After you download the
file, change the file extension from .txt to .do. Follow the directions in the file.
- {25} Download the Stata .do file found
here. After you download the
file, change the file extension from .txt to .do. Follow the directions in the file.
- {25} Do Problem 2.6 in Stock and Watson. We are doing this problem so that given a
table of data, we can calculate the difference in the unemployment rate of college
graduates and non-college graduates, or the difference in the fatality rate of bicycle
accidents whether the bicyclist was wearing a helmet or not (and calculate how many
bicyclists are wearing helmets), or the difference in how frequently democracies go to
war compared to non-democracies. It is also to get us thinking about how one variable
depends on another variable. In part c., only calculate E(Y|X=1). In part
d., only do (i). In part e., do both parts. (Hint: if you can do the first part, the
second part is easy.) Remember in part f., "Explain" means explain
so that a layperson can understand.
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