Polynomial Regression

Reading Assignment: RWG: Chapter 3, Chapter 5:151-153.

EXAMPLE:

Relationship between Coral Head density g/cubic cm and distance to shore (lm) for 9 reefs (27 samples) in the Great Barrier Reef. Problem 12, page 178-179.

SAS commands and data

TOPICS:

• A quadratic regression model
• ANOVA TABLE for multiple regression
• F-test versus t-tests in multiple regression
• Test for lack of fit (using replicates)

HANDOUTS:

1. SAS commands and regression summaries
2. Linear Regression ; residual plots
3. Quadratic Regression ; residual plots
4. Cubic Regression ; residual plots