Muhammad Samara
EC 351
Project Assignment #2
Independent Variable 1: Hours spent on social media per day
45
40
35
30
25
Frequency 20
15
10
5
0
Frequency
0.5 1 1.5 2 2.5 3 3.5 4 5 10 15 20 25
Hours per day spent on Social Media
The social media use variabl
MAN 6325 Fall 2012: PMSM Program
Probability Fundamentals Worksheet: Page 1 of 12
RULE OF COMPLEMENTS WORKSHEET (#1)
The rule of complements is a fundamental and straightforward rule dealing with mutually
exclusive events. Refer to the definitions from th
Econometrics Project
Economics 351-001
Fall 2015
Kelsey Hample
Department of Economics
1
Overview
Each student will individually complete an original research project that will primarily make
use of the SAS statistical software package and a data set coll
Economics 351-001 Econometrics I Fall 2015
Kelsey Hample, Department of Economics
Mon/Wed 1:30 2:45PM, 4223D Nelson Hall
Oce Hours
Oce location: 4122 Nelson Hall
Email address: khample@ncsu.edu
By appointment; please email me to schedule a time that is mu
Stock and Watson Ch. 2 Homework
2.2
(c)
Use probability distribution given in Table 2.2 to compute (a) E[Y] and E[X]; (b)
and corr(X,Y).
Long Commute (Y=0)
Short Commute (Y=1)
Total
2.4
Rain (X=0)
0.15
0.15
0.30
No Rain (X=1)
0.07
0.63
0.70
; and
Total
0.
Muhammad Samara
EC 351
Project Assignment #3
1. Regression Test with all independent variables.
2. Do regression results support original predictions?
No, I originally predicted that heavy social media use would substantially lower the
average student GPA
Exam 1 Review Questions
EC 351
Dinterman
1. Math SAT scores are distributed normally with N (500,10000) . (Note: this notation will
always refer to Normal ( Mean , Variance ).)
a. What fraction of students scores above 750? Above 600? Between 420 and 530?
Muhammad Samara
EC 351
Project Assignment #4
1. The essential purpose of this research project was to analyze the effects of social media
use on student aptitude, using GPA as the primary measurement tool. This would
ultimately be used to provide a solid
Exam 1 Review Questions
EC 351
Dinterman
1. Math SAT scores are distributed normally with N (500,10000) . (Note: this notation will
always refer to Normal ( Mean , Variance ).)
a. What fraction of students scores above 750? Above 600? Between 420 and 530?
Muhammad Samara
EC 351
Project Assignment #1
1. My research topic for this project is the analysis of the relationship between the amount
of activity/ presence on social media on the grade point averages of college students.
2. This is an interesting topi
Two Random Variables:
If you want to compare an outcome across two groups (rate of diabetes by race), you will need
two random variables (rate of diabetes and race)
Main Types of Probabilities:
Marginal Probability Distribution: probability of one event o