## Lesson 5: Residual Analysis and R-Squared

September 6, 2015

**Mon Sep 7**

Review:

- Simple Regression
- Week 1 slides

Presentation:

- Residual Analysis
- Individual Residuals
- Residual Plot(s)
- Residual Sum of Squares (SSE) and Total Sum of Squares (SSyy)
- Coefficient of Determination
- Calculation of r-squared
- Relationship to Pearson Correlation Coefficient

Activity:

- Use data on Table 12.4 on p.
**479**- Calculate and plot residuals
- Calculate r-squared
- Scatter Plot of Actual (y) vs Predicted (y-hat)

Assignment:

- Use your 10 countries GDP and Fertility data to complete the following in Sheets
- Calculate and plot residuals
- Calculate r-squared
- Scatter Plot of Actual (y) vs Predicted (y-hat)
- Share results on blog