Regression analysis, 5 cr

Linear regression analysis with one explanatory variable, graphical inspection, defining a linear model, parameter estimation, hypothesis testing.

Multiple linear regression model and least squares estimation, model building and diagnostics. General linear tests (reduced vs. full model), Extra sums of squares.

Specific regression models, problems related to building a regression model: Qualitative predictors ,Polynomial regression, Weighted Least Squares, Ridge regression, Robust regression