Given statistical model yˆ = 9x + 47, where the response variable y is expected exam score and x is the number of hours studied a week. In this simple linear regression, does the intercept have meaning and if so, interpret the y-intercept.
The intercept is 9 and does have meaning in that the minimum grade you can earn is 9%.
The intercept is 47 and does have meaning in that the maximum grade you can earn is 47%.
The intercept is 47 and does having meaning in that if you do not study, expect an 47 points on the exam.
The intercept is 47 and does not having meaning.