Module 3, Week 2, gretl problem set 6 Use gretl and the "GSS" dataset to answer the following questions. You are interested in the relationship between weekly hours spent on the internet and a person's age. 1. Estimate a simple linear regression model where weekly hours spent on the internet is the dependent variable and age is the predictor. a) Write the estimated regression equation. b) Interpret the estimated slope coefficient. c) Is the estimated slope coefficient statistically significant? How do you know? d) Interpret the model's R-squared. e) Predict the number of weekly hours spent on the internet for someone who is 30 years old