Yessica thought that there was a correlation between the amount of time students slept the evening before their final exam and their final exam grade. She took an SRS of 5 students in her class and recorded the sleep time the evening before their final exam, and their final exam score. Let the sleep time the evening before the final exam represents the explanatory variable, and the final exam score be the response variable. Below is a sample data set. x (hour) 8 9 3 9 9 1 2 3 4 5 Calculate the sample correlation coefficient (r) to three decimal places. r= Why would we expect the correlation coefficient to be positive? O As the sleep time increases, exam score increases As the sleep time increases, exam score decreases As the sleep time decreases, exam score increases O There is no change in exam score to sleep time y (score) 91 94 51 100 90 C
Yessica thought that there was a correlation between the amount of time students slept the evening before their final exam and their final exam grade. She took an SRS of 5 students in her class and recorded the sleep time the evening before their final exam, and their final exam score. Let the sleep time the evening before the final exam represents the explanatory variable, and the final exam score be the response variable. Below is a sample data set. x (hour) 8 9 3 9 9 1 2 3 4 5 Calculate the sample correlation coefficient (r) to three decimal places. r= Why would we expect the correlation coefficient to be positive? O As the sleep time increases, exam score increases As the sleep time increases, exam score decreases As the sleep time decreases, exam score increases O There is no change in exam score to sleep time y (score) 91 94 51 100 90 C
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
![Click this Video for Finding Correlation Coefficient by Using Formula.
Yessica thought that there was a correlation between the amount of time students slept the evening
before their final exam and their final exam grade. She took an SRS of 5 students in her class and
recorded the sleep time the evening before their final exam, and their final exam score.
Let the sleep time the evening before the final exam represents the explanatory variable, and the final
exam score be the response variable. Below is a sample data set.
x (hour)
8
9
3
9
1
2
3
4
5
Calculate the sample correlation coefficient (r) to three decimal places.
r=
9
Why would we expect the correlation coefficient to be positive?
As the sleep time increases, exam score increases
As the sleep time increases, exam score decreases
As the sleep time decreases, exam score increases
There is no change in exam score to sleep time
C
E
y (score)
91
94
51
100
90
C
A](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4b829b8c-72b3-4b93-8fd0-7aab0af86b63%2Fc91b46ba-3fb9-479a-b145-e424724e8517%2Fsadldmt_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Click this Video for Finding Correlation Coefficient by Using Formula.
Yessica thought that there was a correlation between the amount of time students slept the evening
before their final exam and their final exam grade. She took an SRS of 5 students in her class and
recorded the sleep time the evening before their final exam, and their final exam score.
Let the sleep time the evening before the final exam represents the explanatory variable, and the final
exam score be the response variable. Below is a sample data set.
x (hour)
8
9
3
9
1
2
3
4
5
Calculate the sample correlation coefficient (r) to three decimal places.
r=
9
Why would we expect the correlation coefficient to be positive?
As the sleep time increases, exam score increases
As the sleep time increases, exam score decreases
As the sleep time decreases, exam score increases
There is no change in exam score to sleep time
C
E
y (score)
91
94
51
100
90
C
A
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