A study was conducted to determine whether the final grade of a student in an introductory psychology course is linearly related to his or her performance on the verbal ability test administered before college entrance. The verbal scores and final grades for all 10 students in the class are shown in the table below. Student Verbal Score x Final Grade y 11 36 83 22 71 73 33 44 90 44 46 64 55 66 60 66 40 86 77 26 88 88 47 65 99 27 98 1010 67 79 Find the following: (a) The correlation coefficient: r= (b) The least squares line: y^= (c) Calculate the residual for the third student:
A study was conducted to determine whether the final grade of a student in an introductory psychology course is linearly related to his or her performance on the verbal ability test administered before college entrance. The verbal scores and final grades for all 10 students in the class are shown in the table below. Student Verbal Score x Final Grade y 11 36 83 22 71 73 33 44 90 44 46 64 55 66 60 66 40 86 77 26 88 88 47 65 99 27 98 1010 67 79 Find the following: (a) The correlation coefficient: r= (b) The least squares line: y^= (c) Calculate the residual for the third student:
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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A study was conducted to determine whether the final grade of a student in an introductory psychology course is linearly related to his or her performance on the verbal ability test administered before college entrance. The verbal scores and final grades for all 10 students in the class are shown in the table below.
| Student | Verbal Score x | Final Grade y |
| 11 | 36 | 83 |
| 22 | 71 | 73 |
| 33 | 44 | 90 |
| 44 | 46 | 64 |
| 55 | 66 | 60 |
| 66 | 40 | 86 |
| 77 | 26 | 88 |
| 88 | 47 | 65 |
| 99 | 27 | 98 |
| 1010 | 67 | 79 |
Find the following:
(a) The
(b) The least squares line: y^=
(c) Calculate the residual for the third student:
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