ECO374 MIDTERM EXAM SOLUTION
1. Q UESTION 1
a. Since X N (0.5, 4), we know that Z =
X 0.5
2
N (0, 1). (3 pts)
Therefore, (4 pts)
P(1 X 0.5) = P(
1 0.5
X 0.5
0.5 0.5
) = P(0.75 Z 0.5)
2
2
2
= P( Z < 0
UNIVERSITY OF TORONTO
Faculty of Arts and Science
ECO374 Midterm Exam, Fall 2014
Duration 10:10am11:50am
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UNIVERSITY OF TORONTO
Faculty of Arts and Science
ECO374 Midterm Exam, Winter 2013
Duration 10:10am11:50am
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UNIVERSITY OF TORONTO
Faculty of Arts and Science
ECO374 Midterm Exam, Fall 2012
Duration - 1 hours and 40 minutes
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ECO374 MIDTERM EXAM SOLUTION
1. Q UESTION 1
1. (a). Any examples that make sense, e.g. distance to a nearby international airport, total
public park land size, crime rate.
1) i.i.d., 2) constant varia
UNIVERSITY OF TORONTO
Faculty of Arts and Science
ECO374 Midterm Exam, Fall 2013
Duration 10:10am11:50am
Read all of the following information before starting the exam:
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ECO374 MIDTERM EXAM SOLUTION FALL 2013
1. Q UESTION 1
1. (a). Because the four numbers in the mid cell has to add up to 1, therefore 1 = 0.4.
Now we calculate 2
2 = P(Y = 0) = P(Y = 0, X = 1) + P(Y =
ECO374 MIDTERM EXAM SOLUTION
1. Q UESTION 1
1. (a). Population is all the students at UTM. (2 pts); sample is the students in the
classroom where the survey is conducted. (2 pts); random variable is a
ECO374 MIDTERM EXAM SOLUTION
1. Q UESTION 1
1. (a). Population is all the second cup stores in GTA. (2 pts); y| x=1 is the average prot
of all GTA second cup stores located within half kilometer away
ECO374 MIDTERM EXAM SOLUTION
1. Q UESTION 1
a. The are not independent, because P( X = 0, Y = 0) = 0.1 = P( X = 0) P(Y = 0) =
0.4 0.4 = 0.16. (formula 3 pts, result 2 pts)
b. From the rst row we know
ECO374 MIDTERM EXAM SOLUTION
1. Q UESTION 1
1. (a). Any examples that make sense, e.g. distance to a nearby international airport, total
public park land size, crime rate.
1) i.i.d., 2) constant varia
UNIVERSITY OF TORONTO
Faculty of Arts and Science
ECO374 Midterm Exam, Winter 2015
Duration 10:10am11:50am
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UNIVERSITY OF TORONTO
Faculty of Arts and Science
ECO374 Midterm Exam, Fall 2015
Duration 3:10pm4:50pm
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UNIVERSITY OF TORONTO
Faculty of Arts and Science
Sample Exam
ECO374H1F
Duration - 2 hours
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Write you answers on the exam book provided,
ECO374 Sample Final Exam Solution Fall 2013
Question #1
1.(a.)
H0 and H1 should have instead of x
The numerator of t should be x 1
The denominator of t should be
n instead of
n1
We should use the crit
UNIVERSITY OF TORONTO
Faculty of Arts and Science
ECO374 Midterm Exam, Winter 2013
Duration 10:10am11:50am
Read all of the following information before starting the exam:
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ECO374 MIDTERM EXAM SOLUTION
1. Q UESTION 1
1. (a). Population is all the second cup stores in GTA. (2 pts); y| x=1 is the average prot
of all GTA second cup stores located within half kilometer away
UNIVERSITY OF TORONTO
Faculty of Arts and Science
ECO374 Midterm Exam, Fall 2013
Duration 10:10am11:50am
Read all of the following information before starting the exam:
Write you answers on the exam
ECO374 MIDTERM EXAM SOLUTION FALL 2013
1. Q UESTION 1
1. (a). Because the four numbers in the mid cell has to add up to 1, therefore 1 = 0.4.
Now we calculate 2
2 = P(Y = 0) = P(Y = 0, X = 1) + P(Y =
UNIVERSITY OF TORONTO
Faculty of Arts and Science
ECO374 Midterm Exam, Fall 2012
Duration - 1 hours and 40 minutes
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ECO374 MIDTERM EXAM SOLUTION FALL 2013
1. Q UESTION 1
1. (a). Population: all U of T students.
Sample: the students in the class where the survey was conducted.
Random variable: It is a mapping from s
UNIVERSITY OF TORONTO
Faculty of Arts and Science
ECO374 Midterm Exam, Winter 2014
Duration 10:10am11:50am
Read all of the following information before starting the exam:
Write you answers on the exa
ECO374 MIDTERM EXAM SOLUTION
1. Q UESTION 1
1. (a). Population: all the students at UTSC.
Sample: all the students in the class where researcher obtained data.
Random variable: it is a function that m
ECO374 Homework 2
Use data t3-8 Fresh detergent and answer following questions:
1
2
3
4
5
Find the sample regression equation relates demand and price
dierence.
Is the relationship signicant?
What is
ECO374 Homework 1
Problem 2.5(a-c), 2.12, 2.13, 2.15 and 2.18.
Make sure you write down the formula which you use to calculate
the numbers (see example 2.5 and 2.9).
Due on September 27 in class.
ECO374 HOMEWORK 3 SUGGESTED ANSWER KEY
1. Problem 6.3 (a,b,c,d,h)
(a) According to the gure, it is likely that there is a linear trend. To conrm this, we need
to exam the statistical signicance of the