Use the provided dataset $"$HW$2\_$data.csv$"$ to build a multiple linear regression model

$y=x+lon$

Where $x$ is an $np$ matrix. The size of the sample is $n=50$ and the number of predictor variables is $p=3.$ Note that the column of l$\text{'}$s for the intercept term is already included in the dataset.

You can use programming software $(R,$ Python, etc.$)$ to do the computations. You do not need to submit the code but please show your work, including equations, test statistics and conclusions.