Probability of an event is its long-run relative frequency; Must be legitimate 0 P 1 & sum of set of P's = 1 Event combination of outcomes For any random phenomenon, each attempt (or trial) generates an outcome (Discrete distinct values / Continu
Problem Set 8
EC 15, Fall 2015
Due at the beginning of class Monday, 11/23
Read the article, The Effect of Mandatory Seat Belt Laws on Driving Behavior and
Traffic Fatalities by Cohen and Einav and answer the following questions.
a. What research question
EC 15
Section 4 (10:30 am)
Fall 2014
Midterm exam, 10/22/14
Name: _
Notes and Guidelines:
1. 100 total points are possible on this exam: 25 in Section I and 75 in Section II.
Point values for each question are noted. Make sure you do not leave the
larger-
Problem Set 7 - SOLUTIONS
Due at the beginning of class MONDAY November 16
EC 15
Fall 2015
1. Submit your .log file that you created to read your new extract from CPS
IPUMS into stata and save as a stata dataset. In this log file, you should create
all of
Quiz #3 Formula sheet
EC 15, Fall 2015
n
1
s=
(Y i Y )2
n1 i=1
2
k
E ( X )=x 1 f ( x 1 ) + x 2 f ( x 2 ) + x k f ( x k ) = x j f ( x j)
j=1
2
2
s 1 s2
s . e .( X 1 X 2)=
+
n1 n2
t=
( x1 x2 ) ( 1 2)
s21 s22
+
n1 n2
cov ( X ,Y )= XY =E [ ( X X ) ( Y Y ) ]
c
EC 15 Fall 2015
Quiz #5
Monday, November 23
1:30 pm - SOLUTIONS
1. Consider the estimated regression below:
( Employed=1 )=100+.13 male+ 2 ln ( assets ) +.10 years education
(2.5 points) Interpret the coefficient on years_education
Each additional year of
EC 15, Fall 2015
Problem Set 9 - SOLUTIONS
Due 12 pm Friday December 4
TURN THE PROBLEM SET IN OUTSIDE BRAKER 316
1. Read Superfund Cleanups and Infant Health? Janet Currie, Michael
Greenstone, and Enrico Moretti.
a. What is Superfund?
p. 435: The Compreh
EC 15, Fall 2015
Exam #1
October 7, 2015
1:30 pm - SOLUTIONS
Name: _
Notes and Guidelines:
1. 100 total points are possible on this exam: 25 in Section I and 75 in Section II.
Point values for each question are noted. Make sure you do not leave the
larger
EC 15
Fall 2015
Problem Set 6
Due at the beginning of class Wednesday, November 4
Submit a hard copy of your .log file from stata
TO GET FULL CREDIT FOR QUESTION 1YOU MUST CLEARLY ANNOTATE YOUR LOG
FILE WITH COMMENTS IDENTIFYING THE CORRESPONDING QUESTION
Quiz #2 1:30 pm SOLUTIONS
EC 15, Fall 2015
Suppose a random sample of 200 twenty-year old women is selected from a
population and that these mens height and weight are recorded. A regression of
weight on height yields:
^
weight=70+3height
1. Interpret the
EC 15, Fall 2015 W
Quiz #3
Monday, October 19, 2015 -
:32? comm“: + Meme
1. [2 points) Interpret the coefﬁcient estimate on "union" which equals one if
the respondent is a member of a labor union.
Ln(HourlyWage) = 2.07 + 0.27um'on + 0.002H ours
' - " out
EC 15
Section 4 (10:30 am)
Fall 2014
Final exam, 12/12/14
Name: _
Notes and Guidelines:
1. 125 total points are possible on this exam: 30 in Section I and 95 in Section II.
Point values for each question are noted. Make sure you do not leave the
larger-po
EC 15
Section 4 (10:30 am)
Fall 2014
Midterm exam, 10/22/14
Name: _
Notes and Guidelines:
1. 100 total points are possible on this exam: 25 in Section I and 75 in Section II.
Point values for each question are noted. Make sure you do not leave the
larger-
EC 15, Quiz #4
Fall 2015
October 26, 2015
A number of factors may affect the number of hours worked by married women.
Suppose you are first interested in the relationship between the presence of children
under the age of 6 in the home and hours worked. To
EC 15
Section 4 (10:30 am)
Fall 2014
Final exam, 12/12/14
Name: _
Notes and Guidelines:
1. 125 total points are possible on this exam: 30 in Section I and 95 in Section II.
Point values for each question are noted. Make sure you do not leave the
larger-po
EC 15
Section 4 (10:30 am)
Fall 2014
Midterm exam, 10/22/14
Name: _
Notes and Guidelines:
1. 100 total points are possible on this exam: 25 in Section I and 75 in Section II.
Point values for each question are noted. Make sure you do not leave the
larger-
EC 15, Fall 2015
Problem Set 5
Due at the Beginning of Class Wed. Oct. 21
Submit a hard copy of your .log file from stata.
TO GET FULL CREDIT FOR QUESTIONS 1 AND 4 YOU MUST CLEARLY ANNOTATE
YOUR DO AND LOG FILE WITH COMMENTS ALERTING US TO WHICH QUESTION