Let grad be a dummy variable for whether a student-athlete at a large university graduates in five years. Let hsGPA and SAT be high school grade point average and SAT score, respectively. Let study be the number of hours spent per week in an organized study hall. Suppose that, using data on 420 student-athletes, the following logit model is obtained: P(grad = 1|hsGPA, SAT, study) = A(-1.17 +0.24hsGPA +0.00056SAT +0.073study) where A is the logit function. (a) Write down the expression for the logit function. (b) Describe the advantage and disadvantage of using logit model compared with linear probability model (LPM). (c) Holding hsGPA fixed at 3.0 and SAT fixed at 1,200, compute the estimated difference in the graduation probability for someone who spent 10 hours per week in study hall and someone who spent 5 hours per week.

Let grad be a dummy variable for whether a student-athlete at a large university graduates in five years. Let hsGPA and SAT be high school grade point average and SAT score, respectively. Let study be the number of hours spent per week in an organized study hall. Suppose that, using data on 420 student-athletes, the following logit model is obtained: P(grad = 1|hsGPA, SAT, study) = A(-1.17 +0.24hsGPA +0.00056SAT +0.073study) where A is the logit function. (a) Write down the expression for the logit function. (b) Describe the advantage and disadvantage of using logit model compared with linear probability model (LPM). (c) Holding hsGPA fixed at 3.0 and SAT fixed at 1,200, compute the estimated difference in the graduation probability for someone who spent 10 hours per week in study hall and someone who spent 5 hours per week.

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

Let grad be a dummy variable for whether a student-athlete at a large university graduates in
five years. Let hsGPA and SAT be high school grade point average and SAT score,
respectively. Let study be the number of hours spent per week in an organized study hall.
Suppose that, using data on 420 student-athletes, the following logit model is obtained:
P(grad = 1|hsGPA, SAT, study)
= A(-1.17 + 0.24hsGPA +0.00056SAT + 0.073study)
where A is the logit function.
(a) Write down the expression for the logit function.
(b) Describe the advantage and disadvantage of using logit model compared with linear
probability model (LPM).
(c) Holding hsGPA fixed at 3.0 and SAT fixed at 1,200, compute the estimated difference
in the graduation probability for someone who spent 10 hours per week in study hall
and someone who spent 5 hours per week.

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