Imagine that a school manager wants to evaluate the success of students and therefore visits a classroom to ask several questions.
economics
Description
Question 1. (3 points)
Imagine that a school manager wants to evaluate the success of students and therefore
visits a classroom to ask several questions. He very much believes that attending classes
positively a§ects the grades. So he has in his mind the following relation where he expects
that > 0:
where gradei
is the Önal exam score of student i and attni
is the number of hours attended
by student i in classes.
(a) SLR 1: The population model is linear in parameters.
(b) SLR 2: The sample is selected randomly from the population. (Hint: what kind of students would be attending the classes?)
(c) SLR 3: The error has zero conditional mean, i:e: E("jattn) = 0. (Hint: what
would make this assumption fail?)
