Luke Sayre
September 17, 2014
Econometrics
Professor Yun
Homework #1
1) Model 1:
Variable DF Parameter Standard t Value Pr > |t|
Estimate
Error
Intercept
1
17.43356 44.17519
0.39 0.6965
p1
1
-0.67574*
Marta Barber Pea
Homework 2 Econometrics
1. Consider a data le Earnings and Height, which contains data on earnings, height, and other
characteristics of a random sample of US workers. A detailed desc
Solution for HW2
(a) The median height in the sample is 67 inches.
(b) The following table shows average annual earnings for taller and shorter workers
Height
x
Annual Earnings ($)
SE( x )
Height 67 i
Homework 2
a) Median value of height 67
b)
Height > 67
Average Earning
1 FALSE 44488.44 2 TRUE 49987.88
c) Construct a scatterplot of annual earnings (Earnings) on height (Height).Notice that the
poin
HW 4
1.
a) Just the number of bathrooms increases by 1. The rest of regressors remain the same.
Previous Price and new Price differ only in BATH: 23.4 (BATH + 1) 23.4 BATH = 23.4
b) BATH changes by 1
Econometrics HW3
1. Interpret following regression:
Student w=229.926.52F emale+0.51Sibs+0.58Height, R2= 0.50,SER= 21.08
For every additional sibling students weigh 0.51 pounds more.
For every additio
ECON 4230/6230: Homework 4
Due date: Oct 19, 2017
1. Data were collected from a random sample of 220 home sales from a community
in 2013. Let P rice denote the selling price (in $1000), BDR denote the
ECON 4230/6230: Homework 2
Due date: Sep 21, 2017
1. Consider a data file Earnings and Height, which contains data on earnings, height,
and other characteristics of a random sample of US workers. A de
ECON 4230: Homework 5
Due date: Oct 26, 2017
1. Consider the binary variable version of the fixed effects model in the following
equation,
Yit = 0 + 1 Xit + 2 D2i + 3 D3i + . + n Dni + uit ,
except wi
ECON 4230: Homework 1
Due date: Sep 14, 2017
1. Let Y denote the number of heads that occur when two coins are tossed.
(a) Derive the probability distribution of Y .
(b) Derive the cumulative probabil
ECON 4230/6230: Homework 3
Due date: Oct 5, 2017
1. In the process of collecting weight and height data from 29 female and 81 male
students at your university, you also asked the students for the numb
Homework 3: Solutions
1. Answer:
For every additional inch in height, students weigh, on average, roughly 5.5 pounds more. For a given
height and number of siblings, female students weigh approximatel
Marta Barber Pea
Homework 3 - ECONOMETRICS
1. Studentw = - 229.92 - 6.52 x Female + 0.51 x Sibs + 0.58 x Height; R 2 = 0.50, SER = 21.08
For every additional inch in height, students weigh, on average
Econometrics Project Report
Summary
For this final project, I used the 10 given variables and the 21,396 observations in the
Final Project dataset to, using the software suite SAS, understand the char
Econometrics
o
2
o
2
o
o
F(x) = px(1-p)x
o
(0-p)2(1-p) + (1-p)2p
o
= p2(1-p) + p(1-p)2
o
= p(1-p)[p + (1-p)]
o
= p(1-p)
Gender
0
0
1
2
0.2
0.3
0.06
0.56
1
0.27
0.1
0.07
0.44
Party
Conditional PDF: f(x
Luke Sayre
10/6/14
Econometrics
Homework 3
1)
The SAS System
Ob
s
1-1
1 0.99865
1-2
1-3
0.1586 0.83999
6
3)
a) Beta for each firm with intercept
Disney: 0.91459
Microsoft: 1.25992
GE: 0.85897
GM: 1.14
Econometrics
T-distribution: Measure of confidence using the t value
- t value
o
Hypothesis Test
1. Confidence Interval
2. T-test
3. p-value
o
o
o
o
o
- Unbiased Estimator
o
o
o
o
3 methods for testin