nswer those please. If ever can u please answer if with full solutions because i cannot access my laptop/pc at the moment to do the
nswer those please. If ever can u please answer if with full solutions because i cannot access my laptop/pc at the moment to do the
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Hi there.
" Letters d , e , and f " are the remaining questions i want to ask please...
Help me answer those please. If ever can u please answer if with full solutions because i cannot access my laptop/pc at the moment to do the excel so am having a hard time.
Transcribed Image Text:Problems
Suppose you want to determine if the number of hours studying for an exam is associated
with the score the students obtained. To do this, you randomly selected 16 students, asked
them how many hours they studied for the exam (X), and what are their scores in the exam
(Y).
15.0
9.5
12.5
8.0
14.0
7.0
10.5
6.5
Y
97.9
82.6
93.0
82.3
100.0
81.9
89.2
78.4
8.5
11.0
7.5
3.0
5.5
4.5
9.0
5.0
Y
81.5
92.3
85.7
63.2
74.8
70.5
87.6
75.0
a. Construct a scatterplot and describe the relationship between X and Y.
b. Calculate for the sample correlation coefficient r between X and Y. Describe the
association and use this to support the pattern you see in the scatterplot.
c. Test if there is a linear relationship between the number of hours studying and exam
scores at 0.01 level of significance.
d. Find the equation of the straight line that fits the data best and interpret the slope.
e. Determine and interpret the coefficient of determination R?.
f. Predict the average exam score when a student studied for 14.5 hours.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps with 1 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman