Penyelesaian tugas mandiri mata kuliah Pengantar Model Linear. Laporan ini berisi analisis regresi linear berganda menggunakan OLS berbasis matriks untuk memprediksi nilai ujian, lengkap dengan perhitungan Uji-F, Uji-t, R-squared manual, dan validasinya menggunakan fungsi bawaan lm() di R.

Razan Nur Muhammad Ihsan (3338240032)

Week 9 revised analysis building multiple regression model with living area, quality rating, and central air variables. Includes comprehensive diagnostics using the 5 plots from class: residuals vs fitted, residuals vs X values, correlation heatmap, residual histogram, and Q-Q plot. Evaluates linearity, normality, homoscedasticity, and multicollinearity with severity assessments and confidence levels for each assumption.

基于回归的方法，总结了连续/二分类结局及中介变量组合下的因果中介分析方法及 R 代码实现