Econ 172A, Fall 2010: Quiz IV Answers
I am responsible for several mistakes on the quiz. It was not possible to answer Questions 4, 7,
and 8 in Forms 1 and 3 and Question 8 of Form 2. I gave full credit to any answer on the impossible
questions. Here are
Econ 172A, Fall 2010: Quiz IV
IMPORTANT
Added after the fact:
The quiz you took had several mistakes. I corrected these mistakes in class. The rst three
pages describe the quiz as corrected (the substantive correction: 7/3 = 2.33 not 1.33).
I also added R
Econ 172A, Fall 2010: Quiz III
Grading Notes: 40 points possible, median 30. (5 points for each question.)
A company produces two products: A and B . Product A sells for $11 per unit and product B
sells for $23 per unit. Producing a unit of product A requ
Econ 172A, Fall 2010: Quiz III
IMPORTANT
1. The quiz has 3 forms. You should answer the questions from only one form.
If your student identication number ends in 1, 2, 3 answer the questions from Form 1.
If your student identication number ends in 4, 5,
Econ 172A, Fall 2010: Quiz 2 Answers
Below (Dt ) refers to the dual of (P ) and (Dt ) to the Dual of (P ). [The novelty of the question is
that what I call (D) or D ) are not duals of the given problems because of the omitted non-negativity
constraint.]
F
IMPORTANT
1. READ CAREFULLY. YOUR FORM FOR THIS QUIZ MAY NOT BE THE SAME AS
YOUR FORM FOR QUIZ 1.
The quiz has 3 forms. You should answer the questions from only one form.
If the rst number in your student ID is 1, 4, 7 answer the questions from Form 1.
Econ 172A, Fall 2010: Quiz I Answers
Form I:
1. Question 1
(a) Unique: Yes. The feasible set has a corner.
(b) Not Feasible: No. The feasible set is non-empty.
(c) No Solution: Yes. Feasible set is unbounded. (x1 = x2 > 1 is feasible, can make, for exampl
Econ 172A, Fall 2010: Quiz I
IMPORTANT
1. The quiz has 3 forms. You should answer the questions from only one form.
If your student identication number ends in 1, 4, 7 answer the questions from Form 1.
If your student identication number ends in 2, 5, 8
Econ 172A, Fall 2010: Midterm A
Instructions
The examination has 4 questions. Answer them all.
To receive full credit, you must give brief justications for your answers in Questions 1, 3 and
4. In Question 1 this means that you must state the reasons fo
Econ 172A, F2010: Regrade Requests
Regrading Instructions. If you have questions about your exam, I encourage you to speak with me. If
you wish to have portions of your exam regraded, you must follow the rules below.
1. Please read the posted answers to t
Econ 172A, Fall 2010: Midterm C
Instructions
This exam should have your name on it. If it does not, see me or a TA.
The examination has 4 questions. Answer them all.
To receive full credit, you must give brief justications for your answers in Questions
Econ 172A, Fall 2010: Midterm B
Instructions
This exam should have your name on it. If it does not, see me or a TA.
The examination has 4 questions. Answer them all.
To receive full credit, you must give brief justications for your answers in Questions
Econ 172A, Fall 2010: Midterm A
Instructions
The examination has 4 questions. Answer them all.
To receive full credit, you must give brief justications for your answers in Questions 1, 3 and
4. In Question 1 this means that you must state the reasons fo