Solve for d and e

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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Solve for d and e

It is expected that students who consistently perform
well in major tests, quizzes, assignments and seatworks
in the classroom also perform well in standardized
Student Achievement
GPA
A
98
1.2
achievement test. A teacher decided to examine this
95
1.3
hypothesis. At the end of the academic year, she
randomly selected 10 students from her class. She
computes a correlation between the student's
achievement test scores and the overall GPA for each
student computed over the entire year. The data for the
10 students from her class are provided below.
90
1.6
D
87
1.9
E
62
3.5
a. Compute the correlation coefficient.
F
85
2.0
b. Interpret the result in A.
G
76
2.9
c. Determine the regression equation.
H
88
1.5
d. If a student scored a 90 on the achievement test,
what would be his predicted GPA?
71
3.2
92
1.4
e. What could be a students' predicted GPA if he/she
scored 75 and 85?
Transcribed Image Text:It is expected that students who consistently perform well in major tests, quizzes, assignments and seatworks in the classroom also perform well in standardized Student Achievement GPA A 98 1.2 achievement test. A teacher decided to examine this 95 1.3 hypothesis. At the end of the academic year, she randomly selected 10 students from her class. She computes a correlation between the student's achievement test scores and the overall GPA for each student computed over the entire year. The data for the 10 students from her class are provided below. 90 1.6 D 87 1.9 E 62 3.5 a. Compute the correlation coefficient. F 85 2.0 b. Interpret the result in A. G 76 2.9 c. Determine the regression equation. H 88 1.5 d. If a student scored a 90 on the achievement test, what would be his predicted GPA? 71 3.2 92 1.4 e. What could be a students' predicted GPA if he/she scored 75 and 85?
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