Programming challenges
Import and update data
Summarize and visualize data
Calculate covariance and correlation
Fit and summarize a linear model
Assess the model fit
Calculate confidence interval for a coefficient
Calculate an out-of-sample prediction interval
Statistical questions
Interpret the results
Disambiguate: correlation vs. covariance vs. OLS estimate
Identify threats to validity of estimates
Interpret prediction
Brainstorm confounds & alternative explanations
Revisit (vaguely stated) theory