CAS EC507 A1: Statistics for Economists
Fall 2015
Lectures: Monday and Wednesday, 5:30-7:00pm, EPC 209
TA session: Friday, 2:00-3:00pm, EPC 209
Instructor: Maria Tripolski Kimel
Email: [email protected]
Introduction to Stata
Hyosung Kwon
1
Introduction: STATA
n
n
STATA is a statistical package that can be used
to analyze and manipulate data, econometric
analysis, and programming.
All the information
Lecture 1
Using directories to organize your work
You can find out what directory you're in by typing
. pwd
F:\StataStuff
To find where the "official Stata directory" is, type:
. sysdir
STATA:
UPDAT
EC507 A1: Statistics for Economists
Fall 2015
Problem Set 5
Due Friday, October 16
Late problem sets will not be accepted no exceptions. You may work together on the problem set, but
every student ha
EC507 PS2 Solution
1 a)False.
A B \C
A B\C
A contradicting example:
Let A=cfw_1, B=cfw_1 and C=cfw_1, then A B = cfw_1 and A B \C = .
However, B\C = and A B\C = cfw_1.
1
b) False.
A B C:
A B
EC507 PS4 Solution
1. (a) We have 5 men and 5 women who are ranked according to their scores on an exam, where no
two scores are alike and all 10! possible rankings are equally likely. Let X denote th
EC507 A: Statistics for Economists
Fall 2014
PS5 Solution
1. (a) The total number of ways to draw four marbles from the urn without replacement is
!
!" , which is 24232221. And the number of possib
EC507 A1: Statistics for Economists
Fall 2015
Problem Set 6
Due Friday, October 30
Late problem sets will not be accepted no exceptions. You may work together on the problem set, but
every student ha
1
STATISTICS FOR
ECONOMISTS
EC 507 A1
2
Introduction
Statistics is an art of learning from data.
The field of statistics is concerned with the scientific study of collecting,
organizing, analyzing,
1
COUNTING
TECHNIQUES IN
PROBABILITY
Statistics for Economists EC 507 A1
2
Calculating Probability of an Event
Axiomatic definition of probability states only the conditions an assignment of
probabil
1
CONDITIONAL
PROBABILITY
Statistics for Economists EC 507 A1
2
Conditional Probability
Example 1
Assume in a population, there is an equal number of men and women.
All men smoke, all women do not s
1
INTRODUCTION TO
PROBABILITY
Statistics for Economists EC 507 A1
2
Introduction
After the data is described and summarized, we hope to be able to
draw a conclusion on a question of interest.
The pa
1
DISTRIBUTION OF
SAMPLING STATISTICS
Statistics for Economists EC 507 A1
2
Random Sample
Example
Assume we want to study the distribution of household income in Boston.
Our population is all the ho
1
MULTIVARIATE
PROBABILITY
DISTRIBUTIONS
Statistics for Economists EC 507 A1
2
Introduction
For a given experiment, we are often interested in relationships of two or more random
variables.
For a st
1
MULTIVARIATE PROBABILITY
DISTRIBUTIONS PART II
Statistics for Economists EC 507 A1
2
Expected Value of a Bivariate Random Variable
Discrete Case
Definition:
Let
and
function
Let
,
,
be two discret
1
RANDOM VARIABLES
AND PROBABILITY
DISTRIBUTIONS
Statistics for Economists EC 507 A1
2
Random Variables
Definition:
A random variable
With each outcome
is a real-valued function defined on a sample
1
SPECIAL CONTINUOUS
DISTRIBUTIONS
Statistics for Economists EC 507 A1
2
Special Continuous Distributions
Uniform distribution on an interval
Normal distribution
Exponential distribution
Gamma dis
1
SPECIAL DISCRETE
DISTRIBUTIONS
Statistics for Economists EC 507 A1
2
Special Discrete Distributions
Binomial Distribution
Poisson Distribution
Uniform Distribution on Integers covered previously
LetterGrade
A
B
F
A
C
C
D
A
B
F
C
D
B
A
B
A
F
B
C
A
Concentration
2.9
0.6
13.5
17.1
2.8
3.8
16
2.1
6.4
17.2
7.9
0.5
13.7
11.5
2.9
3.6
6.1
8.8
2.2
9.4
15.9
8.8
9.8
11.5
12.3
3.7
8.9
13
7.9
11.7
6.2
6.9
EC507 Statistics for Economics
Fall 2017
Prof. Jordi Jaumandreu
E-mail: [email protected]
Department of Economics, 270 Bay State Road
Room 416, Phone: 617 358 5925
Office hours: T 12:30 pm -2:00 pm; Th 2:
1. True, False or Uncertain. If demand is elastic, then profits can be increased by lowering price.
Circle your answer
a. True
b. False
c. Uncertain
2. Suppose you learn that the elasticity of demand
1
INTRODUCTION TO
PROBABILITY
Statistics for Economists EC 507 A1
2
Introduction
After the data is described and summarized, we hope to be able to
draw a conclusion on a question of interest.
The pa
1
STATISTICS FOR
ECONOMISTS
EC 507 A1
2
Introduction
Statistics is art of learning from data.
Most scientic or industrial studies and experiments produce data,
and the analysis of these data and dra
clear
/* this clears the memory so that a new dataset can be loaded */
/ Setting log-file configuration
capture log close
/* closes a log file if one is open without causing an error if there is not a
EC507 A1: Statistics for Economists
Fall 2014
Introduction to Stata
This useful handout provides an introduction to Stata for Windows and is borrowed from the
same class taught in 2010 by Prof. Ivan F
Introductory Instructional Videos
In order to get the most out of these videos I suggest that you have Stata open while you watch each video and
that you periodically pause the video and do what you
Econ 82B Spring 2016
Problem Set 9
Aggregate Supply and the Short Run Tradeoff Between Inflation and Unemployment
Due date: Thursday, Apr 21
1. (3pts) In the sticky-price model, describe the aggregate
Econ 82B - Spring 2016
Problem Set 2
Economic Growth I: Capital Accumulation and Population Growth
Due date: Thursday, February 4th
1. (2 points) The textbook on pp. 213-15, discusses economic growth
Econ 82B Spring 2016
Problem Set 6
Introduction to Economic Fluctuations
Due date: Thursday March 24
1. Suppose that a change in government regulations allows banks to increase interest
payments on ch
Final Exam Logistics
The IS -LM model
Y
Friday May, 6th: 1:30-4:30pm
C (Y
M P
3 Hours
T ) I (r ) G
Ill bring the exam and scrap paper
LM
L (r ,Y )
We can use the IS-LM
model to analyze the
effects of
Math 10a
Solutions to Self-Quiz on Section 2.4
8
2x
>
>
>
< 1,
2, if x < 2
if 2 x < 0
1. f (x) =
>
3,
if x = 0
>
>
:
cos x,
if x > 0
The functions y = 2x 2, y = 1 and y = cos x are all continuous on (