Chapter 12 Quiz for Practice: Linear Regression

Learning Objectives:

1.  Estimate the correlation both by hand and using technology given a scatterplot.

2.  Use the regression line to make a prediction about a dependent variable given the value of a dependent variable.

3.  Find and interpret the slope and y-intercept of the regression line.

4.  Find and interpret R².

5.  Conduct a hypothesis test for the population correlation.

Before you work on this homework assignment it is recommended that you participate in or watch the webinar on this chapter, read the material on this chapter from the textbook and ask your instructor, a tutor, or fellow students for help when there is a concept that is unclear to you.  If you are not sure how to solve any of the problems, go to the "hint", "textbook pages" or "example videos" for further clarification on the topic.  

Please answer all the questions on this homework assignment.  You will be able to retake it as many times as you wish before the due date and only your highest score will be included in your course grade.  The purpose of this assignment is to learn the concepts and not to just get the answers correct, so please make sure you fully understand the concepts before moving on.

Good luck!

Student Learning Outcomes Addressed in this Quiz:

4.  Apply confidence intervals and test hypotheses to make conclusions about data that come from practical applications.

5.  Perform regression analysis to make informed predictions about relationships between quantitative variables.