1.)
Random Variable: a function that assigns numerical values to outcomes of a process with
uncertainty
1. Discrete random variable: described by probability mass function
2. Continuous random variable: described by probability function
Requirement for di
Fall 2012
ECO 391-402
Monday Sept 10, 2012
Class Assignment#4
Reading: Chapter 7 (Sections 7.1, 7.2)
Due Date: September 12, 2012
1. The chefs at a local pizza chain in Cambria, California, strive to maintain the suggested size of their 16-inch
pizzas. De
Fall 2012
ECO 391-402
Monday Sept 19, 2012
In-Class Worksheet
Reading: Chapter 8 (Section 8.3): Confidence Interval Estimate for Population Mean
1. Find z/2 for each of the following confidence levels used in estimating the population mean.
a. 90%
b. 98%
Salma Begum
ECO 391 Practice Exam I
Practice Exam I
You have 75 minutes to complete the test. You are only allowed a writing utensil, calculator and
test on your desk. Make sure to include your name and information on the scantron. Good luck!
Section 1 Mu
Fall 2012
ECO 391-402
Monday Sept 17, 2012
In-Class Worksheet
Reading: Chapter 7 (Section 7.3): Sampling Distribution of the Sample Proportion
1. Consider a population proportion p = 0.68.
a. Calculate the expected value and the standard deviation of with
Nagasaki Inn or Out?
Group Members:
Emory Goins
Kristen Henson
Erliasari Antle
Brooke Lange
ECO 391 004
December 6, 2012
As a high consuming culture, one would expect restaurant sales to be a pretty
steady figure with the decreasing trend of preparing mea
Nagasaki Inn Sales
2011 Data
Year
Month
2011 January
February
March
April
May
June
July
August
September
October
November
December
Date
http:/www.econstats.com/blsla/la_ky_ur_m.htm
Day
3 Monday
5 Wednesday
17 Monday
23 Sunday
4 Friday
8 Tuesday
17 Thursda
Regression and Summary Table: consisting of one dependent variable and five
independent variables plus the error term.
Y=0 + 1(X1) + 2(X2) + 3(X3) + 4(X4) + 5(X5) +
Fatal Car Accident per State= 0 + 1(population) + 2(weather) + 3(Age Under 20)
+ 4(alcoho
Alise Dellinger
Prabjit Sandhu
Emily Mikes
Yu Pei
ECO 391 Final Project
4/22/13
Introduction:
Our group chose to research the different variables that affect the number of games a National
Basketball Association team wins in the regular season. Our resear
Multiple Linear Regression
Q.2) Lotteries have become important sources of revenue for governments. Many people
have criticized lotteries, however, referring to them as a tax on the poor and uneducated. In
examination of the issue, a random sample of 100
ECO391
Problem Set 2 and 3
1. C onsumerReports
ratedlargescreen(31to35inches)T Vs,asreportedinthefollowingtable(
1994Buying
Guidep.36).WewanttoinvestigatetherelationshipbetweenRatingsandPrice.
,
Note: Please run the regression using Excel.
O bs.#
Manufac
X
Z=
N (0, 1);
X
Z=
N (0, 1);
p p
Z=
p(1 p )
n
n
t=
X
tn-1;
S
n
LCL, UCL = X Z
2
p(1 p)
;
LCL, UCL = p Z
2
b1
bo Y b1 X ;
n
i
SST =
(Y Y ) y
SSR =
(Y Y )
Se
Se
2
2
i
i
i
e
2
i
n2
e
2
i
n k 1
2
b12
i
2
i
S xy
S
x
2
i
rxy
2
x
nY 2 ;
SSE
;
Fall 2012
ECO 391-402
Wednesday Sept 5, 2012
Class Assignment#3
Reading: Chapter 6 (Sections 6.2, 6.3)
Due Date: September 10, 2012
1. Let X be normally distributed with mean = 120 and standard deviation = 20.
a. Find P(X 86).
b. Find P(80 X 100).
c. Find
Fall 2012
ECO 391-402
Wednesday August 29, 2012
Class Assignment#2
Reading: Chapter 6 (Sections 6.2, 6.3)
Due Date: September 5, 2012
Q1. What are the two parameters that completely describe the Normal Distribution?
Q2.a Demonstrate, both verbally and gra
Fall 2012
ECO 391-402
Monday August 27, 2012
Class Assignment#1
Reading: Chapters 5 & 6 (Sections 5.1, 5.2, 6.1, 6.2)
Due Date: August 29, 2012
Q1. What is a Random Variable?
Q2. What are the classifications of random variables? Give examples of each type
Economics 391 (Fall 2014)
Professor Lamarche, University of Kentucky
Goodness of Fit and Prediction
Lecture 8
The regression model that previously estimated is,
yi = E(y|x) = + xi ,
in our attempt to explain the changes in our dependent variable in term
Economics 391 (Fall 2014)
Professor Lamarche, University of Kentucky
Linear Correlation and Estimation
Lecture 5
The exclusive focus of the rst part of the class was on point estimation and testing
considering a single random variable. In business and eco
Economic Modeling provides a rational, abstract template to aid organize the analyst's thoughts.
The model aids the economist logically segregate and sort out complex chains of cause and effect
and influence between the numerous interacting elements in an
Running Head; Scenic Designer
Scenic Designer
Students name
Institutional affiliation
Scenic Designer
Scenic designer works hand in hand with the director as well as other play designers to
create a general visual concept for development of the stage envi
Running head: PHILOSOPHY
1
Philosophy
Institutional affiliation
Students name
PHILOSOPHY
2
Question 1: Periods of Western Philosophy
Western philosophy is a term that is used to refer to the traditional philosophies that
started in the ancient Greece. Wes
Surname 1
Students Name:
Institutional Affiliation
Course
Date of Submission:
Literature and Languages
Written and performed in late 1500s and early 1600s, Hamlet is one of Shakespeares
great piece of work. The events that were taking place around that er
Skeletal System and Immune System Workshop
The skeletal system has many functions:
Protection and support
Movement (in conjunction with the muscular system)
Maintenance of calcium ion homeostasis
Formation of blood cells (in the bone marrow)
The skele