Quiz 3 is Friday, April 4, 2008
3 problems covering Chapters 8-10
Same format as Exams 1 and 2
HW 3 due on Friday
Chapter 8: 5, 11, 15, 21, 35, 37, 46, 48, 53
Chapter 9: 7, 19, 25, 37, 41, 47, 51, 57, 61
Chapter 10: 7, 9, 41
Project Proposals due on Friday
Tentative Title
Objective of the study
Summary/Source of the data
Anticipated method(s) to be applied
How the study relates to your major

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Simple Linear Regression and
Correlation
(Moving on to Chapter 12)
If there is a true relationship between the
variables
X
and
Y
, it can be modeled
using the
Simple Linear Regression
Model
, that is described by the equation
y
=
β
0
+
β
1
x +
ε

The True Regression Model Showing
how
Y
Varies for a Given Value of
X:
x
x
Y
2
=
β
0
+
β
1
x
2
Y
1
=
β
0
+
β
1
x
1
True Regression
Line
Y=
β
0
+
β
1
x
X
1
X
2

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