For this challenge, the same housing dataset will be used.  
However, now it has two features: age and area of the house (columns `age` and `square_feet`).

import pandas as pd

df = pd.read_csv('https://codefinity-content-media.s3.eu-west-1.amazonaws.com/b22d1166-efda-45e8-979e-6c3ecfc566fc/houseprices.csv')
print(df.head())

Your task is to build a Multiple Linear Regression model using the `OLS` class. Also, you will print the summary table to look at the p-values of each feature.

Challenge

Soluzione