Homework 3: ECO220Y
Exercises: Chapter 12: 13, 22, 41, 44, 46
Problems:
(1) Doing a two- vs. one-tailed test affects what: the rejection region, the test statistic, neither or both?
(2) True or False? Explain: In hypothesis testing a smaller P-value means

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UNIVERSITY OF TORONTO
Faculty of Arts and Science
APRIL 2011 EXAMINATIONS
ECO220Y1Y
Duration - 3 hours
Examination Aids: Calculator
Last
Name:
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Name:
Student
#:
ENTER YOUR NAME AND STUDENT # ON BOTH THE PINK SCANTRON FORM
AND THIS PAGE B

Mid-Term Test, ECO220Y, June 28, 2011
Page 1 of 10
Last Name:
First Name:
Student #:
Instructor: Prof. Murdock
Duration: 110 minutes
Allowed Aids: A non-programmable calculator; Aid sheets are given to you with this test
Format: This test has 6 questions

ECO220 Quiz #1 (November 4, 2005)
Page 1 of 8
Instructor: Dr. Jennifer Murdock Section: L0301 Duration: 50 minutes and you must stay in the test room for the entire 50 minutes Format: 20 multiple choice questions with answers recorded on SCANTRON form Poi

ECO220Y Lecture 1
Introduction to Hypothesis Testing
Migiwa Tanaka
Reading:12.1, 12.2
1
Basic Steps in Statistical Analysis
Planning
Form
Research
Question
Collect
Data
Descriptive
Analysis of
Data
2
Theory
Probability Theory
Distribution of
Random Variab

Mid-Term Test, ECO220Y, June 28, 2011
SOLUTIONS
SOLUTIONS
(1) We check the rule of thumb that shows the Normal approximation for the sampling distribution of
the sample proportion is appropriate. We can check that
14 10 and 1
28 10 OR
we can check that
3

Homework 17: ECO220Y
Exercises: Chapter 13: 23 26, 28, 31, 32, 41, 43, 51, 54 (NOTE: In all cases do the calculations without
using software and use the statistical tables provided on our course website: use approximation when
necessary.)
Problems:
(1) Wi

PART 1 of 2: ECO220 Midterm Test (June 28, 2007)
Page 1 of 8
Instructor: Prof. Murdock Duration: 120 minutes. You must stay in the test room the entire time. Part 1 (60 points total): 20 multiple-choice questions with answers recorded on SCANTRON form. Pa

ECO220Y Lecture 4
Statistical Inference of Means
Migiwa Tanaka
Reading:
1
Outline
Statistical Inference of Means (July 12)
Point Estimation
Confidence Interval Estimation
Hypothesis Testing
Statistical Inference of Two Population (July 16)
2
Inference of

ECO220 Quiz #1 (June 8, 2007)
SOLUTIONS
Page 1 of 1
(1) Suppose you suspected a non-linear relationship between two variables: X and Y. Which of the following would best describe the relationship between these variables? (D) (2) For a telephone survey of

ECO220 Quiz #1 (November 4, 2005)
SOLUTIONS (1) Which of the following is not a parameter? (d) (2) Which of the following statements about sampling error is true? (d)
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(3) Which of the following conclusions about var1 can be made based on the a

ECO220 Quiz #1 (June 8, 2006)
FORM 01
Page 1 of 7
Instructor: Dr. Jennifer Murdock Duration: 50 minutes. You must stay in the test room for the entire time. Format: 20 multiple choice questions with answers recorded on SCANTRON form Point values: Each mul

ECO220 Quiz #1 (June 8, 2006)
FORM 01 SOLUTIONS
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(1) Suppose a researcher surveys 349 parents to ascertain their views on proposed curriculum reform for public schools. What kind of data will this survey generate? (A) (2) Considering the graph

ECO220 Quiz #1 (Jun. 4, 2009)
Page 1 of 1
SOLUTIONS (1) For a random sample of 50 grandfathers, a researcher records whether or not he is retired and whether or not he is a widower. These are _ data that contain _ variables. (E) (2) Sampling error explain

ECO220 Quiz #1 (June 8, 2007)
Page 1 of 8
Instructor: Prof. Murdock Duration: 50 minutes: NO EXTRA TIME ALLOWED. You must stay in the test room the entire time. Format: 18 multiple choice questions with answers recorded on SCANTRON form Point values: Each

Homework 17: ECO220Y SOLUTIONS
Problems:
(1) Can simply eye-ball these (can calculate the s.e. of the sample mean):
a.
b.
c.
d.
fail to reject null
reject null in favor of research hypothesis
reject null in favor of research hypothesis
fail to reject null

PART 1 of 2: ECO220 Midterm Test (June 28, 2007) SOLUTIONS (1) Which of the following is a continuous probability distribution? (D)
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(2) In measuring the strength of a positive linear relationship between X and Y, which of the following affect

Homework 16: ECO220Y
Exercises: Chapter 13: 2, 3, 4, 5, 7 11, 13, 15, 16 (NOTE: In all cases do the calculations without using
software and use the statistical tables provided on our course website: use approximation when necessary.)
Problems:
(1) Suppose

Homework 8: ECO220Y
Exercises: Chapter 19: 1, 2, 7,8,11,12,18, 20 (for d), the Durbin-Watson statistic is 0.9043.), 22, 25, 26,30, 34
Problems:
(1) Suppose that using the Least Squares Method you estimate the linear relationship between Y and X. The
sampl

PART 1 of 2: ECO220Y Midterm Test (June 22, 2009)
Page 1 of 6
PART 1
Instructor: Prof. Murdock Duration: 150 minutes; Students writing this test from 2:30 5:00 must stay in the test room for the entire 150 minutes. Students writing this test from 5:10 7:4

ECO220 Midterm Test (December 16, 2005)
SOLUTIONS
PART I of II
Page 1 of 1
(1) Which of the following would be an example of panel (longitudinal) data? (c) (2) Which of the following histograms is positively skewed? (e) (3) Consider a sample taken from a

Homework 13: ECO220Y
Exercises: Chapter 12: 1, 3, 5 7, 9, 10, 18, 19
Problems:
(1) An economist wants to show that the supply of electricity is inelastic. What is the research hypothesis?
What is the null hypothesis?
(2) An economist wants to show that th

ECO220 Midterm Test (December 16, 2005)
PART I of II
Page 1 of 8
Instructor: Dr. Jennifer Murdock Duration: 120 minutes (2:00 4:00 pm). You must stay in the test room for at least 90 minutes. Part I: 20 multiple choice questions with answers recorded on S

Homework 14: ECO220Y SOLUTIONS
Problems:
(1) Only the rejection region and not the test statistic.
(2) Further reading.
(3) Define Population 1 as students that had economics training and Population 2 as students that did not have
economics training.
H0: