Questions
Here are a few questions and their answers to revisit what we have learned in this chapter:
- How can we use our experience to see the level of relationship between variables to build a prediction model?
- What is the input data for the formulas of the coefficient of correlation and determination?
- How do we reject a
null
hypothesis using the t-statistic? - What is the SSE, and what is the other name for it?
- What is the meaning of the slope sign in linear regression?