Stat 104: Quantitative Methods for Economists
Class 17: Confidence Intervals- One Sample Proportion
1
What is a sample proportion?
Say we survey n people and ask them if they like the
movie The Social Network (yes or no). We obtain n
responses of the for
3rd Edition
3rd
Edition
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AUSTRALIA AND NEW
Chemistry CHM 1311C
Final Exam
December 18, 2012
Professor Darrin Richeson
Name:
Student Number:
There are 11 pages and 7 problems on the exam.
The last three pages consist of an equation sheet, data tables and a periodic
table.
Feel free to CAREFULLY rem
9. Let W = cfw_(x, y, z, w) R4 | x y z w 0. Then,
A. (0, 0, 0, 0) W but W is not closed under multiplication by scalars
B. (0, 0, 0, 0) W but W is closed under addition
/
C. W is closed under addition but W is not closed under multiplication by scalars
D.
2 , u 0?
1. Which of the following subsets of F(R) are subspaces of F(R)?
S={fF(R) I f($)+f($)=0} /
T={fF(R) I f(1)f(0) =0} t
U={feF<R) I f(0)20} I.
V={fF(R) I f(0)+f(1)=0}
AVandS PR
BUandS 0 Pg Twice»! 2 qux) W Iked E I
csandT 37 \ \SoIAKCIKQIE
E Van
MAT1341 Introduction to Linear Algebra
Mike Newman
1. Complex Numbers
class notes
Fall 2010
Arithmetic of complex numbers is much like real arithmetic.
(a + bi) (c + di) = (a c) + (b d)i
(a + bi)(c + di) = ac + adi + bic + bidi
ROOTS
Polynomials have root
1. In the reaction shown, 1000 g Call] 10H yielded 64.0 g CHls I) what is the
theoretical yield of the reaction, 2) what is the percent yield?, 3) what mass of _
CGHI 10H would produce 100.0g of Q,ng ifthe percent yield is that determine in
part 2?
CgHm
1. You are part of a team scientists investigating a sports doping scandal. A sample
suspected of being andro (a slang word for androstenedione C19H26O2) is collected
during the investigation. A combustion analysis of a 0.1570 g sample of this materia