Module2CriticalThinkingAssignment
Module 2- Critical Thinking Assignment
Daniel Reagan
ECON 400- Managerial Economics
Colorado State University- Global Campus
Dr. Greg Evans
February 16, 2014
1
Module
Lecture 2
Random Sampling
Suppose a student wants to record commuting time on random selected days. This is an example of
random sampling where n objects (sample size) are selected randomly from a pop
Sample Covariance
n
S XY =
1
(X X )(Y iY )p Cov ( Y , X )=E [ ( X X ) ( Y Y ) ] = XY
n1 i=1 i
Sample Correlation
r XY =
S XY
Cov ( Y , X )
p Corr ( Y , X )=
SX SY
Var ( X ) Var ( Y )
Research Questi
Lecture 1
Probability Distribution of a discrete random variable (outcome from rolling a die)
X
Pr ( X )
1
1/6
6
1/6
Bernoulli Distribution
X
Pr ( X )
1
p
0
1 p
Probability Density Function of a co
Lecture 5
1. Omitted Variable Bias
Omitted variable bias arises when the regressor,
X , is correlated with an omitted variable which is a
determinant of the dependent variable.
^ 1 p 1 + Xu u
X
Suppos
Lecture 4
Hypothesis testing for population mean
Confidence Interval for population mean
Comparing population mean
Hypothesis Testing
H 0 : 1= 1,0
H 1 : 1 1,0
[two sided alternative]
Test statistic
t=
Running Head: MODULE 3- A MANAGERIAL LESSON IN DIVERSITY ISSUES
Module 3- A Managerial Lesson in Diversity Issues
Daniel Reagan
ORG300: Applying Leadership Principles
Colorado State University- Global
Running Head: MODULE 8- FINAL PAPER
Module 8- Final Paper
Daniel Reagan
ECON400 -3: Managerial Economics
Colorado State University- Global Campus
Dr. Evans, Gregory
March 30, 2014
1
MODULE 8- Final Pa
RunningHead:MODULE5CRITICALTHINKINGASSIGNMENT
Module 3- Critical Thinking Assignment
Daniel Reagan
ECON 400- Managerial Economics
Colorado State University- Global Campus
Dr. Greg Evans
March 21, 2014
RunningHead:MODULE4CRITICALTHINKINGASSIGNMENT
Module 4- Critical Thinking Assignment
Daniel Reagan
ECON 400- Managerial Economics
Colorado State University- Global Campus
Dr. Greg Evans
March 8, 2014
Question 2 from Exercise 3.1
We are solving Maxx a
xx2 , we want to get x in terms of a.
Firstly,setting the first order derivative with respect to x to zero
a
2 x=0
2 x
Secondly, move a to the right