Lecture 20: Regression (part 2)

November 24th, 2022 (11th week of classes)

Simple linear regression

Regression is one of the most important statistical frameworks and although it won’t be obvious to your in BIOL322, it has the same foundation as ANOVAs but it consider two continuous variable. Regressions allow biologists to tackle of multitude of questions.

In this second lecture on regressions, we cover inferences related to regression models, including confidence bands for regressions, prediction intervals for single observations and statistical hypothesis testing. We present some diagnostic tools to assess whether we should trust of not a regression model for prediction. We cover a number of assumptions underlying regression models and issues regarding sampling of data for regression.