Exam 1Stat 401BoyleSpring 2010
You are allowed to use one page of notes and a calculator.
1. [20 points] Suppose X and Y are random variables with expectation
(mean) and variance given as E (X ) = 3, V (X ) = 5, E (Y ) = 2, V (Y ) = 9.
Compute the quantit
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Stat 401 FINAL EXAM Dec. 21, 2005
J .Millson
1. Suppose that a sample 51:1,m2, - - - ,xg of specimens of ore is collected from
a certain location in a copper mine, and the amount of copper in each of the
specimens is measured in grams. We shall
Stat 401 FINAL EXAM _ December 18, 2004
J .Millson ' v
1. A drug is tested to determine whether it can lower the glucose level of
diabetic rats. Five rats are given the drug, while ve others are used as
controls. The blood glucose levels (in mg/ ml) of th
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BR .Camcc. Vang
STAT 401, Final Examination
May 20, 2003, Tu
Full credit will not be given to a problem if you only give the correct
answer without showing derivation.
1.(25%) The data in the following table represent the number of hours o
M
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Stat 401 Final Exam Fall 2006
Calculators allowed. All work must be shown to receive ll] credit.
1. Each of a group of 20 intermediate tennis players is given two tennis rackets, one with
gut strings and the other with nylon, each player will
'Stat 401 FINAL EXAM December 19, 2007
J .Millson.
1. A drug is tested to determine whether it can lower the glucose level of g _ '4 u H
diabetic rats. Five rats are given the drug, While 've others'are'fus'ed'as
controls. The blood glucose levels (in mg
STAT 401 FINAL EXAM
H. Glaz ; 13 May 2010
General Instructions: Each problem must be worked on a separate answer sheet; use the back
before requesting a new sheet.
All Problems:
(A) oz = 0.05 unless otherwise stated.
(B) Your answers must include a senten
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STAT 401 FINAL EXAM
H. Glaz ; 18 December 2009
General Instructions: Each problem must be worked on a separate answer sheet; use the back
before requesting a new sheet.
All Problems:
(A) a 2 0.05 unless otherwise stated.
(B) Your answers must inclu
Stat 401 Final Exam Fall 2008
All work must be shown to receive full credit.
1. (30 pts) A sample of 12 radon detectors of a certain type was selected, and each was
exposed to 100 pCi/L of radon. The resulting readings were as follows:
104.3 89.6 89.9 95.
Stat 401 FINAL EXAM May 17, 2002
J .Millson
1. Suppose that a sample 1:], $2, - - - ,xg of specimens of ore is collected from
a certain location in a copper mine, and the amount of copper in each of the
specimens is measured in grams. We shall suppose tha
March 12, 2015 Stat 401 EXAM 1
(chapters 7 9)
[Pilachowski]
Follow directions carefully:
Counting front and back as one page, number the pages in your answer booklet 1 through 8.
Answer question 1 on answer page 1, question 2 on answer page 2, etc.
You
Stat 401 Statistics and Probability
Minitab Project 2 Answer Key
I.a. A. Minitab session window
One-Sample Z: C1
Test of = 30 vs < 30
The assumed standard deviation = 12.2647
Variable
C1
N
52
Mean
28.76
StDev
12.26
SE Mean
1.70
95% Upper Bound
31.56
Z
-0.
Stat 401 Hand-in Homework 1 solutions
Part 1. CLT Homework Exercises
A. solutions summary (answers only)
These answers were calculated using exact values and the exact value answers are given. Decimal
approximations are given in part B below. If you used
Sun/T
Name: Signature:
STAT 401 Final Exam, 1:30-3:30pm December 19
o This exam is closed book, but two double-sided formula sheets are allowed.
0 There are 5 problems in all (two pages). Answer all questions in the booklet.
Problem 1. (10+5+10 points)
3:.
Dec. 20, 2014 Stat 401. Final Exam ,
Instructions: Work each numbered problem on a separate answer sheet. (You may use both front and back of each sheet.) Show all
work; partial credit may be given for wrong answers if the method shown is essentially
Cremma I C,
Stat 401 Final Exam Spring 2014
Calculators allowed. All work must be shown to receive zll credit.
1. Each of a group of 25 intermediate tennis players is given two tennis rackets, one with
gut and the other with nylon strings, each player wil
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Stat401
Final exam
M.Jakobson
Show all work, justify your answers.
1.
2.
3.
4.
I
Consider a random variable X and suppose E(X) = 1.1., V(X) = a2.
9.) Find E(X2).
b) Suppose X1,X2, . . . ,Xn is a random sample from population X,
and X i
April 23, 2015
Stat 401 EXAM 2
(chapters 10, 12)
[Pilachowski]
Follow directions carefully:
Counting front and back as one page, number the pages in your answer booklet 1 through 8.
Answer question 1 on answer page 1, question 2 on answer page 2, etc.
Y
STAT 401 Final Exam 1a (Spring 2008)
Name: Section:
Instructions: You are responsible for showing all the necessary alge
braic work in this exam. Any conclusions unsupported by calculations
will not be credited.
1.(30) A group of four iid observations (de
Final Exam, Stat 401-0201, Spring 2010
You are allowed to use four pages of notes and a calculator.
There are 200 points possible.
1. [30 points] Random samples of students from the University of Prose
and the University of Politics were polled on preferr
Exam 2Stat 401BoyleSpring 2010
You are allowed to use two pages of notes and a calculator.
1. [30 points] Suppose you are given 15 pairs of numbers,
(x1 , y1 ), (x2 , y2 ), . . . , (x15 , y15 )
and the summary statistics
xi = 40
(xi )2 = 1, 000
yi = 90
(y
Exam 1Stat 401BoyleSpring 2010
SOLUTIONS
You are allowed to use one page of notes and a calculator.
1. [20 points] Suppose X and Y are random variables with expectation
(mean) and variance given as E (X ) = 3, V (X ) = 5, E (Y ) = 2, V (Y ) = 9.
Compute t