If  the confidence interval for a slope coefficient is (-.14, 12.2), is the slope statistically significant?  Why or why not?
Think about a research question that interests you.
What is your research question?
What is an example of a testable hypothesis related to this research question?
Suppose that you are going to test some version of this hypothesis using a simple linear regression. What would your predictor be? What would your dependent variable be?
What are some potential confounding variables that might motivate you to use a multiple linear regression equation instead?