3 The following table contains the ACT scores and the GPA (grade point average) for eight college stu-dents. Grade point average is based on a four-point scale and has been rounded to one digit after thedecimal.StudentGPAACT2.8213.42433.02643.5273.6293.0252.7253.730(i)Estimate the relationship between GPA and ACT using OLS; that is, obtain the intercept andslope estimates in the equationGPÅ = Bo + BIACT.Comment on the direction of the relationship. Does the intercept have a useful interpretationhere? Explain. How much higher is the GPA predicted to be if the ACT score is increased byfive points?(ii) Compute the fitted values and residuals for each observation, and verify that the residuals(approximately) sum to zero.(iii) What is the predicted value of GPA when ACT = 20?(iv) How much of the variation in GPA for these eight students is explained by ACT? Explain.

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Answered: 3 The following table contains the ACT…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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