MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question
Student
Name
Jack
Anne
7-11
Harry
Sharon
John
James
13. The following data was collected by a teacher who gave a test. He wonders if
there is a relationship between the hours students studied for a test and the score that
was achieved.
Adam
Brandon
Brett
Brady
Charles
Darren
Dave
Dawn
Denise
Eric
Emily
Fred
Fran
Jane
Hours
Studied
6
7
6,5
8
6,6
8,1
6,8
6,9
d) How
7,3
6,9
8,2
7,2
7,3
6,9
8,6
7,4
7,6
6,8
8
7,4
6,5
Grade
53%
60%
56%
79%
58%
85%
70%
56%
69%
76%
79%
68%
74%
many.
72%
84%
78%
76%
65%
92%
80%
65%
Test Score 9
a) Create a scatter plot for the data and draw in the line of best fit.
b) Find the equation of the line of best fit using your calculator.
-20
c) Using your regression equation, determine the score a student could expect to
receive if they had studied for 5.0 hours.
hours would a student need to study so as to expect a score of 95%.
e) Is your answer to d) above reasonable? Explain.
Hours Spent Studying
f) Is there another variable that needs to be considered in this situation?
* I+
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Transcribed Image Text:Student Name Jack Anne 7-11 Harry Sharon John James 13. The following data was collected by a teacher who gave a test. He wonders if there is a relationship between the hours students studied for a test and the score that was achieved. Adam Brandon Brett Brady Charles Darren Dave Dawn Denise Eric Emily Fred Fran Jane Hours Studied 6 7 6,5 8 6,6 8,1 6,8 6,9 d) How 7,3 6,9 8,2 7,2 7,3 6,9 8,6 7,4 7,6 6,8 8 7,4 6,5 Grade 53% 60% 56% 79% 58% 85% 70% 56% 69% 76% 79% 68% 74% many. 72% 84% 78% 76% 65% 92% 80% 65% Test Score 9 a) Create a scatter plot for the data and draw in the line of best fit. b) Find the equation of the line of best fit using your calculator. -20 c) Using your regression equation, determine the score a student could expect to receive if they had studied for 5.0 hours. hours would a student need to study so as to expect a score of 95%. e) Is your answer to d) above reasonable? Explain. Hours Spent Studying f) Is there another variable that needs to be considered in this situation? * I+
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