STAT 421
Winter 2010
Name:
Exam 3 (100 points)
SHOW ALL OF YOUR WORK FOR PARTIAL CREDIT. This is a closed book, closed
notes, closed neighbor exam. You may use a calculator and three pages of notes. All necessary statistical tables are provided.
1. A scie
STAT 421
Winter 2011
Name:
Exam 2 (55 points)
THIS EXAM IS ONLY FOR THE PURPOSE OF SHOWING YOU THE STYLE AND
LENGTH OF THE EXAM. YOU NEED TO STUDY MORE THAN THE MATERIAL
INCLUDED HERE IN ORDER TO BE ADEQUATELY PREPARED FOR EXAM 2.
1. Vertebrate animals ar
STAT 421
Winter 2011
Name:
Exam 2 (55 points)
SHOW ALL OF YOUR WORK FOR PARTIAL CREDIT. This is a closed book, closed
notes, closed neighbor exam. You may use a calculator and two pages of notes. All necessary statistical tables are provided.
1. Vertebrat
STAT 421
Winter 2012 A
Name:
Exam 2 (60 points)
SHOW ALL OF YOUR WORK FOR PARTIAL CREDIT. This is a closed book, closed
notes, closed neighbor exam. You may use a calculator and two pages of notes. There is a
page of scrap paper at the back of the exam th
STAT 421
Winter 2010
Name:
Exam 3 (100 points)
SHOW ALL OF YOUR WORK FOR PARTIAL CREDIT. This is a closed book, closed
notes, closed neighbor exam. You may use a calculator and three pages of notes. All necessary statistical tables are provided.
1. A scie
STAT 421
Winter 2011
Name:
Exam 1 (55 points)
SHOW ALL OF YOUR WORK FOR PARTIAL CREDIT. This is a closed book, closed
notes, closed neighbor exam. You may use a calculator and one page of notes. All necessary
statistical tables are provided.
1. (5 points)
ISOM2500 Business Statistics
Course Outline
LECTURE
Instructor: Dr. Baoqian PAN Kris
Room: 4431; Email: [email protected]
Consulting Hours: After class or send an email to make an appointment
Teaching associate: Andrew YAM
Room: 4351; Email: [email protected]
Of
ISOM 4540
Time Series Analysis and Forecasting
Instructor
Inchi Hu, Professor of ISOM, Room 4436, Tel: 2358-7734
Office hours: By appointment
Email: [email protected];
Tutorials
The weekly tutorial will go over assignments and supplementary
materials. The tut
Computacenter PLC (CCC.LN)
Highlights
($ in milions GBP , except per share data)
Historical Period
2011A
Market Capitalization
- Cash and Marketable Securi
+ Preferred & Other
+ Total Debt
Periodic Enterprise Value
Revenue, Adj
Growth %, YoY
Gross Profit,
SPORT, FITNESS AND HEALTH PROGRAM
The Ohio State University
The Department of Human Sciences
KNSFHP 1146 Boxing
(1 credit)
Instructor:
Class Number:
11661
Office:
Class Location:
PAES A070
Office Hours:
Meeting Time:
T,TH 10:20a-11:15a
Semester, Year:
Spr
GIVENS & ASSUMPTIONs
Property Characteristics
Land Area
Land Area
Gross Building Area (GBA)
Gross Leasable Area (GLA) - MF
Gross Leasable Area (GLA) - Office
Gross Leasable Area (GLA) - Retail
Floors
Parking
Units
Average MF Unit Size
Density
0.75 acre
32
STAT 421
Winter 2012
Name:
Exam 1 (60 points)
SHOW ALL OF YOUR WORK FOR PARTIAL CREDIT. This is a closed book, closed
notes, closed neighbor exam. You may use a calculator and one page of notes. All necessary
statistical tables are provided.
1. (10 points
STAT 421
Practice Problems for FINAL
Prof. Goel
The following problems are basically unassigned problems from Home Work
Assignments #1-3. Some of these are potentially harder than the actual exam. If
you can solve these, you should be in good shape.
We wi
STAT 421
Additional Practice Problems for Midterm Exam-II
Prof. Goel
The following problems are basically unassigned problems from Home Work
Assignments #4-6. Some of these may be potentially harder than the actual exam.
If you can solve these, you should
SOLUTION-MIDTERM- II
STAT 421, Spring 2012
1. [20 points] Suppose that a random sample X1 , X2 , . . . Xn is taken from a N (0, 2 )
distribution, where 2 > 0. and that we wish to test H0 : = 1 vs. H1 : = 1.
(a) [5 points] Show that the MLE of 2 under the
Solution-Midterm Examination - I
STAT 421, Spring 2012
Prof. Prem K. Goel
1. [20 points] Let X1 , X2 , . . . , Xn be a random sample of size n from a Gamma population with = 2 and = /2, where is the unknown parameter.
(a) [6 points] Find the Method of Mom
Statistics 421: Homework #7. Solution
Due Wednesday, May 28
Problem 13.48
Given, standard deviation of weights of a random sample of size n = 24 is s = 238 Pounds.
Assume that the weights are normally distributed.
Test H0 : = 250 against the two-sided alt
Statistics 421: Homework #6. Solution
Due Monday, May 14
Problem 13.2
The probability of a type II error is = P (fail to reject H0 |H0 is false). In this
x0
case, since the test for one-sided alternative leads to reject H0 if and only if /n z , the
x0
acc
Statistics 421: Homework #5. Solution
Due Monday, May 7
Exercise 12.11
i.i.d
Suppose that X1 , , Xn Exp(). The hypotheses are given by
H0 : = 0
vs.
H1 : = 1
where 1 > 0
In this setting, since both hypotheses are simple, we can use the Neyman-Pearson(N-P)
Statistics 421: Homework #4. Solution
Due Monday, April 30, 2012
Problem 11.16
What we need to show is :
Assuming n1 = n2 = n, we can be at least (1 )100% condent that the absolute erz2
ror (|(1 2 ) (1 2 )|) in our estimate (1 2 ) of (1 2 ) is less than e
Statistics 421: Homework #3. Solution
Due Monday, April 16, 2012
Problem 10.62
Note that is known here. The normal density with variance 2 is given by
f (xi ; ) =
Then the likelihood is
(xi )2
1
e 2 2
2
n
L( ) =
i=1
(x )2
1
i2
e 2
2
and the log likeliho
Statistics 421: Homework #2. Solution
Due Monday, April 9
Exercise 10.36
Suppose that X1 , X2 , , Xn Exp() where > 0; x > 0.
(i) E (X ) = E (X ) =
(ii) V ar(X ) =
V ar(X )
n
=
2
n
0 as n
By Theorem 10.3, X is a consistent estimator of .
Exercise 10.37
Statistics 421: Homework #1. Solution
Due Monday, April 2
Exercise 8.23
From the result of Exercise 8.22, we already know that by CLT, as n
X
=
/ n
Yn
n
1
2/n
Z N (0, 1)
(1)
since Xi 2 , i = 1, , n implies that = E (Xi ) = 1 and 2 = V ar(Xi ) = 2.
1
No
Stat 421
Spring 2010
Sample Final Exam
Name:
(Last, F irst)
Recitation Instructor (circle yours):Lira Pi/ Siyoen Kil/ Rui Wang
SHOW ALL OF YOUR WORK FOR PARTIAL CREDIT. This is a closed book, closed notes, closed
neighbor exam. You may use a calculator an
Stat 421
Spring 2010
Final Exam
Recitation Instructor (circle yours):Lira Pi/ Siyoen Kil/ Rui Wang
Name:
(Last, F irst)
SHOW ALL OF YOUR WORK FOR PARTIAL CREDIT. This is a closed book, closed notes, closed
neighbor exam. You may use a calculator and 3 pag