STAT 3504 Review Problems I: Midterm
1.
A marketing researcher, having collected data on breakfast cereal expenditures by families with 1, 2, 3,
4 and 5 children living at home, plans to use an ordinary regression model to estimate the mean
expenditures a
STAT 3504
Assignment 4
DUE: Friday, March 22
1.
A company uses 6 filling machines of the same make and model to place detergent into cartons that
show a label weight of 1 kilogram. The production manager has complained that the 6 machines do
not place the
STAT 3504
Assignment 3
Approx 80-90 marks
DUE: Monday, February 25, NO LATE ASSIGNMENTS ACCEPTED - solutions posted Mon. evening
Remember to highlight relevant output and label it with the relevant question number (eg 1(a) ) as done in
solutions for assig
STAT 3504
Assignment #2
Approx
marks
DUE: Friday, February 8
1.
This question is to be done by hand.
A consumer preference study was conducted to compare the effects of 3 different bottle designs (A,
B,C) on sales of a popular fabric softener. 12 supermar
STAT 3504
Assignment 1
DUE: Friday, January 18 - in class or Monday Jan 21 - in the lab
For each of the studies in #1 through #4, answer the following questions:
a)
b)
c)
d)
e)
What is the response variable?
What is the study unit?
What are the factor(s)?
Carleton University
School of Mathematics and Statistics
Sampling Methodology: STAT 3507 Winter 2017
Assignment # 2 (Due Feb 14, 2017)
1. In a very large population composed of actual individuals, we are looking to estimate
the mean age Y . Given informat
Problem 1
a) An estimate of the ratio R of the average market share calculated by the weekend
method (W) to that calculated by the traditional method (T) is given by:
^ y = W = W k /nw = (16+17 +17+16+12+18)/6 = 16 =1.0435
r= R=
x T T k /nT (15+18+16+ 14+
STAT 3504 Final Review Problems II
1.
a)
b)
c)
d)
2.
a)
b)
c)
3.
How do randomized block designs increase the precision in an experiment?
Explain the difference between a CRD and a RBD. When is a RBD more advantageous? Why?
When is a CRD more advantageous
STAT 3504 Final Review Problems I
The analysis of variancefor :1 randomized block design produced thcANOVA table entries shoWn
-herc. ' i I ' i i
SOURCE I _0l ' ss MS
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Blocks - l, 5 ' Mankr 14.90 i W
Error
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STAT 3504 Midterm Review Problems 2
ni
1.
Prove that
e
ij
= 0 for i = 1, 2, r
j=1
2.
In a study of length of hospital (number of days) of persons in 4 income groups, the parameters are as
follows:
1 = 5.1, 2 = 6.3, 3 = 7.9, 4 = 9.5, = 2.8. Assume that th
STAT 3504 Review Problems I: Midterm
For problems 1 5 answer the following questions:
(a) What is the response variable?
(b) What is the study unit? (c) What are the factors?
(d) What are the treatments?
(e) Is the study experimental, observational or mix
STAT 3507 A
Sampling
Methodology
Winter 2017
Last update:
January 04, 2017
15:21:20
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Power Boosts for
Cluster Tests
David Sankoff and Lani Haque
Presented by: Seyma Uran
Introduction
Gene clustering: when there are groups of 2 or
more genes within a genome that encode for
similar functions or attributes. The genes are
located within a few
STAT 3504
Assignment #2
DUE: Wed. Jan. 28
1.
Text #16.4
2.
Text #16.6
3.
To be done by hand
#7 on assign 1 cont.: In an experiment to investigate the effect of colour of paper (blue, green,
orange) on response rates for questionnaires distributed by the "
STAT 3504 Assignment #5
DUE: Wednesday April 6
1.
For problem #21.7 in your text (Do by hand)
a)
Why do you think that "age of subject" was used as a blocking variable?
b)
A plot of the lipid level reductions vs the 3 levels of fat content is shown for ea
STAT 3504
Assignment 4
DUE: Wednesday March 23
Questions #1, 2 & 3 are to be done by hand
1.
The following is a partial analysis of variance table for a two-factor factorial study with factor A having
4 levels, factor B having 3 levels, and a sample of n
STAT 3504
Assignment 3
Approx
marks
DUE: Monday, March 7
When using SAS: Hand in a copy of BOTH code and output.
1.
In a study to determine whether students in B.A., B.Sc, and B.B.A. programs earn different amounts
in summer jobs, a random sample of 4 stu
STAT 3504
Assignment #2
DUE: Wed. Feb. 9
Use SAS to help you do questions #1, #2, #3, #4 & #5. Hand in a copy of BOTH code and output.
Remember to use the DM and FOOTNOTE statements at the beginning of your program. Also use a
LINESIZE of 85 and a PAGESIZ