School

Ryerson University
Department

Quantitative Methods

Course Code

QMS 202

Professor

Jason Chin- Tiong Chan

QMS202-Business Statistics II Chapter13

Chapter13 Simple Linear Regression

Outcomes:

1. Construct a scatter diagram

2. Understand and interpret the terms dependent variable and

independent variable

3. Calculate a least squares regression line

4. Determine and interpret the coefficient of correlation, the coefficient

of determination, and the standard error of estimate

5. Conduct a test of hypothesis for a population slope, using t Test

6. Interpret an ANOVA table

Simple Regression Analysis

1. Simple Regression Analysis is the process of constructing a

mathematical model that can be used to predict one variable

(dependent variable) by another variable (independent variable)

2. Dependent variable: the variable we wish to predict and denoted

by

y

3. Independent variable: the variable used to make the prediction

and denoted by

x

4. Regression analysis with two or more independent variables is

called multiple regression analysis.

Example1

For each question, identify the dependent and independent variables

a. Does the number of litres of gasoline sold depend on the volume of

traffic?

b. Does the number of meals sold in a cafeteria depend on the

number of employees?

c. Does sales revenue depend on advertising expenditure?

Winter2011 Page#1

www.notesolution.com

QMS202-Business Statistics II Chapter13

Scatter Diagram

1. A chart that portrays the relationship between two variables.

Scatter Diagram A

Winter2011 Page#2

www.notesolution.com

QMS202-Business Statistics II Chapter13

Scatter Diagram B

Scatter Diagram C

Winter2011 Page#3

www.notesolution.com

Over 90% improved by at least one letter grade.

OneClass has been such a huge help in my studies at UofT especially since I am a transfer student. OneClass is the study buddy I never had before and definitely gives me the extra push to get from a B to an A!

Leah â€” University of Toronto

Balancing social life With academics can be difficult, that is why I'm so glad that OneClass is out there where I can find the top notes for all of my classes. Now I can be the all-star student I want to be.

Saarim â€” University of Michigan

As a college student living on a college budget, I love how easy it is to earn gift cards just by submitting my notes.

Jenna â€” University of Wisconsin

OneClass has allowed me to catch up with my most difficult course! #lifesaver

Anne â€” University of California

Join OneClass

Access over 10 million pages of study

documents for 1.3 million courses.

Sign up

Join to view

OR

By registering, I agree to the
Terms
and
Privacy Policies

Already have an account?
Log in

Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.