Basic HTML Version
Q
uantitative
R
easoning &
P
roblem
S
olving
344
© 2014 Pacific Crest
A
re You Ready?
Before continuing, you should be able to ...
I can...
OR
Here’s my question...
calculate z-scores
calculate the correlation coefficient
explain the difference between
correlation
and
causation
find the linear regression equation
P
lan
How to complete the activity
1. Review the Methodology for Performing Data Analysis from 7.3.
2. Discuss the Your Turn! application of the Methodology for Calculating the Linear Regression
Equation.
3. Walk through the models and map their steps to the steps in the Methodology for Calculating the
Linear Regression Equation.
4. Answer the Critical Thinking Questions.
5. Complete the remainder of this activity (from Demonstrate Your Understanding through Assessing
Your Performance) on your own, or as directed by your instructor.
M
odel(s)
Exemplars and representations
Content available online at companion website.
C
ritical Thinking Questions
Developing your understanding
1. What do each of the following correlation values represent? 0, 1, –1
2. What
r
values would lead to reliable linear regression models?