Tsang, Karen
A09475458
10/31/2012
Stata Hw #1
1. Description (describe) of Dataset
1.1. How many observations are in the data?
51 observations
1.2. How many variables?
7 variables
1.3. What does the variable exec stand for exactly?
Total executions from 2
Midterm2 1. identify each of the following topics as being part of microeconomics or macroeconomics:
a. The impact of a change in consumer income on the purchase of luxury automobiles. b. The effect of a change in the price of coke on the purchase of peps
Economics 120: Summer 2007
Reading Notes: 06.20
Chapter 1 I. Definition of Economics A. It is the social society concerned with the efficient use of scarce resources to achieve the maximum satisfaction of economic wants II. Economic Perspective A. Ec
Basic Probability and Statistics Inference
(Econ 120A, Fall 2016)
Munpyung O
Department of Economics
University of California, San Diego
[email protected]
Numeric Summary Measures
Munpyung O (UCSD)
Basic Probability and Statistics Inference
Part 2
2 / 44
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Winter 20H
Dr. Maria Candido
Name of
Chapter 12
Instrumental Variables Regression
I Solutions to Exercises
1.
(a)
(b)
(d)
(a)
(b)
(c)
(a)
(b)
The change in the regressor, m“) — ln(Pl.f'1§‘;’5‘"“‘), from a $0.10 per pack increase in the
retail price is In 2.10 — In 2.00 = 0.0488. The expected
Economics 12th
Winter 2011
Dr, Maria Candide
Student Name:
Student ID:
Name of Student to your right:
Name of Student to your left:
Economics 120C Final Examination Answer Key
Winter Quarter
March 16‘“, 2011
Version A
Instructions:
a. You have 3 hours t
Chapter 8
Nonlinear Regression Functions
l Solutions to Exercises
1. (a)
(b)
(c)
(b)
(c)
(d)
(0
198—196
196
The percentage increase in sales is 100x = l.0204%. The approximation
is 100 X [In (198) — In (196)] = 1.0152%.
When Sales2002 = 205, the percent
Economics 120C
Winter 2012
Dr. Maria Candido
Student Name:
Student ID:
Name of Student to your right:
Name of Student to your left:
Economics 120C Midterm Examination Answer Key
Winter Quarter
February 17th, 2012
Version A
Instructions:
a. You hav
Basic Probability and Statistics Inference
(Econ 120A, Fall 2016)
Munpyung O
Department of Economics
University of California, San Diego
[email protected]
Inferential Statistics
Inferential Statistics
Munpyung O (UCSD)
Basic Probability and Statistics Inf
Problem set 2- Answer key
1. a)
0
b) 15
c) Z-score=
5
10
15
15 X
15 3.3
=
= 2.707
s
4.322
2. a)
b) skewed to the right
c)
0
20
40
60
80
100
d) There are 6 outliers; 41, 62, 54, 75, 98, 41
3.
a) P(A) = P(activit y $3000) = 0.17 + 0.43 = 0.6
P(B) = P(1000 a
Economics 120: Summer 2007
Lecture 1: 06.20
Chapter 1 I. How to allocate scarce resources to satisfy unlimited want II. [Missing Notes] III. 2 Branches: A. Macroeconomics 1. Analysis of Whole (Aggregate) Economy 2. Issues: a) Unemployment b) Inflatio
Problem Set 1
Econ 120A, Fall 2016
1. Classify each sample as random, systematic, stratified, or cluster.
a) Three representatives from each employee type (faculty, staff, administrative) are chosen for a
salary committee.
b) A game show assigns all audie
Problem Set 3
Econ 120A, Fall 2016
1. Suppose that E1 is the event that a person has the deadly disease, AIDS, and that E2 is the event that
he or she does not have this disease. About 0.6% of the American population is estimated to have this
disease. To
Basic Probability and Statistics Inference
(Econ 120A, Fall 2016)
Munpyung O
Department of Economics
University of California, San Diego
[email protected]
Inferential Statistics
Munpyung O (UCSD)
Basic Probability and Statistics Inference
Part 4a
2 / 22
R
Problem set 1- Answer key
1. a)
b)
c)
d)
stratified
random
systematic
cluster
2. Observational study
(+)
(+)
(+)
(-)
it can occur in a natural setting.
researchers can look at past instances of statistics and draw conclusions
researcher can use variable t
Basic Probability and Statistics Inference
(Econ 120A, Fall 2016)
Munpyung O
Department of Economics
University of California, San Diego
[email protected]
Data
Science of data
Statistics is the science of data.
Data
Munpyung O (UCSD)
Statistics
knowledge
Problem Set 2
Econ 120A, Fall 2016
1. Consider a sample of n = 10 measurements:
3, 2, 0, 15, 2, 3, 4, 0, 1, 3
a) Construct a box plot for this data.
b) Identify any outliers.
c) Calculate the z-score for the observation 15.
2. The price-to-earnings(P/E) r
Econ 120A, Fall 2016
Basic Probability and Statistics Inference
Lectures: RBC Auditorium
MWF 5:00 5:50pm
MWF 6:00 6:50pm
Instructor: Dr. Munpyung O
Office: Econ 109
Office hours: F 1:30 4:30pm or by appointment. In addition, the TAs hold office hours
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