The SAT and ACT exams are often used to predict a student's first-term college grade point average (GPA). Different formulas are used for different colleges and majors. Suppose that a student is applying to a university with an intended major in civil engineering. Also suppose that for this college and this major, the following model is used to predict first term GPA. GPA = a + b(ACT) a = 0.6 b = 0.2 (a) In this context, what would be the appropriate interpretation of the value of a? The value of a is the predicted ACT score of a student who has a 0 GPA. There is not enough information to know how to interpret the value of a. The value of a represents the change in predicted GPA associated with an increase of 1 in ACT score. The value of a represents the change in predicted GPA associated with an decrease of 1 in ACT score. The value of a is the predicted GPA of a student who scored a 0 on the ACT. (b) In this context, what would be the appropriate interpretation of the value of b? The value of b represents the change in predicted GPA associated with an decrease of 1 in ACT score. The value of b is the predicted ACT score of a student who has a 0 GPA. The value of b represents the change in predicted GPA associated with an increase of 1 in ACT score. The value of b is the predicted GPA of a student who scored a 0 on the ACT. There is not enough information to know how to interpret the value of b.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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The SAT and ACT exams are often used to predict a student's first-term college grade point average (GPA). Different formulas are used for different colleges and majors. Suppose that a student is applying to a university with an intended major in civil engineering. Also suppose that for this college and this major, the following model is used to predict first term GPA.

GPA	=	a + b(ACT)
a	=	0.6
b	=	0.2

(a) In this context, what would be the appropriate interpretation of the value of a?

The value of a is the predicted ACT score of a student who has a 0 GPA.

There is not enough information to know how to interpret the value of a.

The value of a represents the change in predicted GPA associated with an increase of 1 in ACT score.

The value of a represents the change in predicted GPA associated with an decrease of 1 in ACT score.

The value of a is the predicted GPA of a student who scored a 0 on the ACT.

(b) In this context, what would be the appropriate interpretation of the value of b?

The value of b represents the change in predicted GPA associated with an decrease of 1 in ACT score.

The value of b is the predicted ACT score of a student who has a 0 GPA.

The value of b represents the change in predicted GPA associated with an increase of 1 in ACT score.

The value of b is the predicted GPA of a student who scored a 0 on the ACT.

There is not enough information to know how to interpret the value of b.

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