Recitation Number 7
Confidence Intervals
Statistics for Business and Economics NYUSH 2016
1
Z or T?
Statistics for Business and Economics NYUSH 2016
2
Traffic Problem
A traffic engineer wants to estim
Recitation Number 9
Linear Regression
Statistics for Business and Economics NYUSH 2016
1
Gym Problem
Jim, Trainer in a very famous gym in Shanghai
wanted to inquire about the relation between the
Benc
Recitation Number 9
Hypothesis Tests - Review
Statistics for Business and Economics NYUSH 2016
1
Z or T?
Statistics for Business and Economics NYUSH 2016
2
Cigarette Problem
It is known that the nico
Solutions to Recitations Number 12
BUSF-SHU Statistics for Business and Economics
Multiple Regression Problem
a)
1 = 1
1
1
1.86 = 0.090
1 = 0.167
0.025
2 = 17.14 = 0.001
While calculating the missing
Recitation Number 9 Solution
BUSF-SHU Statistics for Business and Economics
Cigarette Problem:
a)
:
cfw_ 0
:
2
>2
b)
T=
=
2.52
0.72
25
= 3.47
c) If > 1.711, 0
If 1.711, 0
d)
The following 2 differ
Solutions to Recitations Number 8
BUSF-SHU Statistics for Business and Economics
BPM Problem:
a)
The population all the patients who have a very high BPM.
The sample is 64 patients who have been chose
Solution to Recitation Number 7
BUSF-SHU Statistics for Business and Economics
Traffic Problem:
a)
[
2
b)
] [53.22.861*
8.7
] [47.64,58.77]
20
If we knew that the population SD is 8 then:
[
2
] [5
Solutions to Recitations Number 6
BUSF-SHU Statistics for Business and Economics
The Supermarket Problem
a)
X~N(50,15)
n=40
~ (50 ,
15
40
) ~(50,2.37)
5550
( > 55) = 1 (
) = 1 ( 2.11) = 1 0.9826 0.02
Recitation Number 6
CLT
Statistics for Business and Economics NYUSH 2016
1
Supermarket Problem
The number of employees at branches of a
supermarket chain has mean 50 and standard
deviation 15.
1.
What
Recitation Number 5
Normal Distribution
Hyper Geometric Distribution
Statistics for Business and Economics NYUSH 2016
1
Coke Cans Strike Again
The daily demand for coke cans in a cafeteria
is approxim
Recitation Number 8
Hypothesis Tests
Statistics for Business and Economics NYUSH 2016
1
BPM Problem
It is known that a patients who have a specific
disease(disease X) have a very high BPM(Beats
Per Mi
3.? Two marbles are drawn at random and without replace-
ment from a box containing two blue marbles and three
red marbles.
a. List the sample points for this experiment.
I. Assign probabilities to th
2.18 lGraph the relative frequency histogram for the 500 mea-
surements sununarized in the accompanying relative fre
quency table.
Measurement Class Flelative Frequency
.52.5 .10
2.54.5 .15
4.56.5 .25
1.19 Opinion polls. Pollsters regularly conduct opinion polls to
determine the popularity rating of the current president.
Suppose a poll is to be conducted tomorrow in which 2,000
individuals will be
Homework 3
Solution
There are multiple solutions for this question, as the description
for this experiments result/goal is not clear. Here I list two of
them.
1. If only marble colors are recorded, an
4.26 Reliability of a manufacturing network. A team of indus-
trial management university professors investigated the
reliability of a manufacturing system that involves multiple
production lines (Jim
Part One
Value
Chapler3
6.
FURTHER
Two good general texts on fixed income markets are:
READING
F. J. Fabozzi and S. V. Mann,
2011).
Valuing Bonds
Spot interest rates and yields Which comes first in th
Lecture 2, Certainty and Capital budgeting. Chapters 3,5,6
NPV =PV(discounted cashflow) Investment
IRR (yield of cashflows) is roughly same as NPV
The company's book rate of return may not be a good m
Adjust Terminal Cash Flows (Salvage Value). When an asset is sold at the end of the analysis, the cash flow is the selling
price - taxes. The taxes paid are 34% of the capital gains (taxes are negativ
Corporate Finance
Spring 2017
Midterm I
Name:
NetID:
Corporate Finance Midterm I
Spring 2017
Instructions:
1. You have 1 hour and 15 minutes.
2. You can use a non-programmable calculator.
3. The exam
1
Homework #8 Solutions
1a. ISH:
Reasons for Lower Leverage than Average
No relative tax advantage of debt (0% compared to 21%)
Hy's wealth is tied well to shareholder wealth, so less agency costs o
1
Practice Second Midterm Exam
Instructions:
1. You have 2 hours.
2. You can only use a calculator and two sheets of 8-1/2 X 11 paper with notes. There is an
annuity table attached to the back of the
Corporate Finance
Spring 2017
Midterm II
Name:
NetID:
Corporate Finance Midterm II
Spring 2017
Instructions:
1. You have 1 hour and 15 minutes.
2. You can use a non-programmable calculator.
3. The exa
Homework #3 (Due February 27 in Class)
1. As winner of a breakfast cereal competition, you can choose one of the following
prizes:
(a) $100,000 now
(b) $180,000 at the end of five years
$11,400 a yea