ECON 1203 Tutorial Workshop Questions
Weeks 7 and 8
1. Suppose a normally distributed random variable X has a mean of 50 and a variance of 100. Also suppose a
sample of size 16 is drawn from this population. Calculate the following probabilities:
(a)
P(40
ECON1203 Past Papers Suggested Solutions
By Blair Wang BIT12
If you find any questions where you don't agree with my solution, please let me know! That means that one
of us can learn from the other :)
NOTE: To access these papers, go to UNSW Library websi
Weeks 11 and 12
1. RecalltheAnzacGaragedata(AnzacG.xls)usedpreviouslyandavailableintheExceldatasubfolderonthe
Moodle site under Tutorial Questions and Information. We previously considered the simple linear
regressionmodelgivenby:
whereprice=thepriceofaus
ECON 1203 Tutorial Workshop Questions
Semester 1 2015
*This document will be periodically updated with questions to be discussed in succeeding tutorials, and
re-posted to Moodle every fortnight.*
Weeks 3 and 4
1. (a) Explain what it means to say that two
ECON 1203 BUSINESS & ECONOMIC STATISTICS
Final examination - Semester 1 2013
General comments:
Do not penalize differences due to rounding error
Penalize initial errors but not later incorrect answers that are conditionally correct
Question 1 [18 marks
ECON 1203 Tutorial Sample Solutions
Semester 1 2015
Weeks 3 and 4
1. (a) Explain what it means to say that two probabilistic events in a sample space are mutually
exclusive of one another.
If two events lets call them A and B are mutually exclusive, then
FINAL PRACTICE EXAM P (SOURCE: PRE AUT 07)
Last updated 22nd October 2010
Cover Type B
TO BE RETURNED AT THE END OF THE EXAMINATION.
THIS PAPER MUST NOT BE REMOVED FROM THE EXAM CENTRE.
SURNAME:
_
FIRST NAME:
_
STUDENT NUMBER: _
COURSE:
_
_
FINAL EXAMINAT
Weeks 5 and 6
1. A random number generator is designed to draw numbers at random from within a specified range. We
can consider any number in the range as a possible outcome.
(a) What type of distribution is the random number generator drawing from?
(b) S
ECON 1203 Tutorial Sample Solutions
Semester 1 2015
Weeks 7 and 8
1. Suppose a normally distributed random variable X has a mean of 50 and a variance of 100. Also suppose a
sample of size 16 is drawn from this population. Calculate the following probabili
BES Tutorial Sample Solutions, S1/11
WEEK 3 TUTORIAL EXERCISES (To be discussed
in the week starting March 14)
1. Using the car data from Week 2, Question 3:
(a) Redo Q3(c) using EXCEL to confirm that the
frequency histogram is given by Figure 3.1.
Freque
ECON 1203 Tutorial Workshop Questions
Semester 1 2015
*This document will be periodically updated with questions to be discussed in succeeding tutorials, and
re-posted to Moodle every fortnight.*
Weeks 1 and 2
1. (a) What is meant by a variable in a stati
ECON 1203 Tutorial Sample Solutions
Semester 1 2015
Weeks 5 and 6
1. A random number generator is designed to draw numbers at random from within a specified range. We
can consider any number in the range as a possible outcome.
(a) What type of distributio
ECON 1203 Tutorial Sample Solutions
Semester 1 2015
Weeks 9 and 10
1. State whether the normal distribution, the t distribution, or neither would be the right type of
sampling distribution to assume for the sample mean in order to test hypotheses regardin
ECON 1203 Homework Week 11
On MyStatLab ,find and watch the following StatTalk videos:
o
Regression
o
Confounding
o
Extrapolation
On MyStatLab, find and watch the Technology Help video entitled Scatterplot and
Regression Line for whichever version of Ex
ECON1203
Business and Economic
Statistics
Week 11
Week 11 topics
Prediction using the linear regression model
l Errors and residuals
l The multiple regression model
l
l
l
Interpretation and basic inference
Several regression case studies
2
Prediction in r
5/24/2015
ArthurBenjamin:Teachstatisticsbeforecalculus!|TalkVideo|TED.com
Log in
Arthur Benjamin:
Teach statistics before calculus!
TED2009 2:58 Filmed Feb 2009
Subtitles available in 62 languages
View interactive transcript
1,522,929 Total
views
Share th
For exclusive use University of New South Wales, 2015
KEL638
DAVID DRANOVE
Practical Regression: Introduction to
Endogeneity: Omitted Variable Bias
This is one in a series of notes entitled Practical Regression. These notes supplement the
theoretical cont
For exclusive use University of New South Wales, 2015
DAVID DRANOVE
KEL637
Practical Regression: Building Your Model
What Variables to Include
This is one in a series of notes entitled Practical Regression. These notes supplement the
theoretical content o
Population model:
Yt = 0 + 1 t + t;
t = 1, . . . , T.
Estimated model:
Yt = b0 + b1 t + et;
t = 1, . . . , T, T = 30.
Useful information from this estimation (see output on slide):
t = 15.5;
s = 5.5659;
sb1 = 0.117;
n = 30;
Standard error for Yf
The predi
ECON 1203 Homework Week 12
On MyStatLab, find and view the technology video entitled Simple regression,
Multiple Regression, and Scatterplots for whichever version of Excel you have
access to
Read the HBP resource entitled Practical Regression: Introduc
ECON1203 Notes
CHAPTER 1: What is Statistics?
Statistics is a way to get information from data
Descriptive statistics deals with methods of organising, summarising, and presenting
data in a convenient and informative way
o e.g. using graphical technique
ECON 1203/ECON 2292 BUSINESS & ECONOMIC STATISTICS
Final examination - Semester 1 2010
General comments:
Do not penalize differences due to rounding error
Penalize initial errors but not later incorrect answers that are conditionally correct
Question 1
ECON 1203 Homework Week 2
Do the assigned reading from the textbook.
Work through and ensure you understand and can replicate all statistical output and
calculations in the Excel spreadsheet, available on Moodle, showing the data for the
Helloworld mark
ECON 1203 Homework Week 1
Read the Course Outline from front to back. *
Do the assigned reading from the textbook. *
Watch the following two YouTube videos available on Moodle: *
o Arthur Benjamin: Teach Stats before calculus! *
o Why You Need to Study