- +44 141 628 6080
- [email protected]

The following table contains the act scores and the gpa

The following table contains the ACT scores and the GPA (grade point average) for eight college students. Grade point average is based on a four-point scale and has been rounded to one digit after the decimal.

Student, GPA, ACT

1, 2.8, 21

2, 3.4, 24

3, 3.0, 26

4, 3.5, 27

5, 3.6, 29

6, 3.0, 25

7 2.7 25

8 3.7 30

a. Estimate the relationship between GPA and ACT using OLS; that is, obtain the intercept and slope estimates in the equation

? GPA = ?0 + ?1 ACT

Comment on the direction of the relationship. Does the intercept have a useful interpretation here? Explain how much higher is the GPA predicted to be if the ACT score is increased by five points?

b. Compute the fitted values and residuals for each observation and verify that the residuals (approximately) sum to zero.

c. What is the predicted value of GPA when ACT = 20?

d. How much of the variation in GPA for these students is explained by ACT? Explain (hint: need to calculate R^2).

Expected delivery within 24 Hours

1947115

Questions

Asked

3,689

Active Tutors

1433186

Questions

Answered

**
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !! **

Â©TutorsGlobe All rights reserved 2022-2023.

## Q : What factors led to the mortgage default crisis how did

what factors led to the mortgage default crisis how did mortgage defaults affect banks involved in mortgage lending and