Question 4 (10 marks) - Linear Regression Model A social scientist is interested in estimating the impact the time students spend on social media has on their performance in business subjects. The scientist conducted a survey which asked randomly selected students about the average number of hours they spend on social media and their average marks in business subjects. The data is reported below. Average marks Average daily hours spent on social media 50 58 67 A scatter diagram together with the regression line is given below. 100 90 so Average marks 5 6 1 2 3 Average daily hours spent on social media The regression model Y = Bo + BIX + & was applied and the following output was generate by Excel