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Problem 84e
Page 685
Section: BRINGING IT TOGETHER: HOMEWORK
Chapter 12: LINEAR REGRESSION AND CORRELATION
Textbook ExpertVerified Tutor
16 Nov 2021
Given information
- Given : Table is
- To Find the correlation coefficient. Is it significant?
Step-by-step explanation
Step 1.
Using scatterplot in part 
, value of 
is 
. So, taking square root of , the correlation coefficient is 
.
, value of is . So, taking square root of , the correlation coefficient is .The sample size of the given data is 
.
.So, to test the significance of the correlation coefficient, the degree of freedom for the given data is written below:
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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208
Solutions
Chapter
Section
- Problem 80a
- Problem 80b
- Problem 80c
- Problem 80d
- Problem 80e
- Problem 80f
- Problem 80g
- Problem 80h
- Problem 80i
- Problem 81a
- Problem 81b
- Problem 81c
- Problem 81d
- Problem 81e
- Problem 81f
- Problem 81g
- Problem 81h
- Problem 81i
- Problem 82a
- Problem 82b
- Problem 82c
- Problem 82d
- Problem 82e
- Problem 82f
- Problem 82g
- Problem 82h
- Problem 82i
- Problem 82j
- Problem 83a
- Problem 83b
- Problem 83c
- Problem 83d
- Problem 83e
- Problem 83f
- Problem 83g
- Problem 83h
- Problem 83i
- Problem 83j
- Problem 83k
- Problem 84a
- Problem 84b
- Problem 84c
- Problem 84d
- Problem 84e
- Problem 84f
- Problem 84g
- Problem 84h
- Problem 84i
- Problem 84j
- Problem 85a
- Problem 85b
- Problem 85c
- Problem 85d
- Problem 85e
- Problem 86a
- Problem 86b
- Problem 86c
- Problem 86d
- Problem 86e
- Problem 86f
- Problem 86g
- Problem 86h
- Problem 86i
- Problem 86j
- Problem 87a
- Problem 87b
- Problem 87c
- Problem 87d
- Problem 87e
- Problem 87f
- Problem 87g
- Problem 87h
- Problem 87i
- Problem 87j
- Problem 87k
- Problem 87l
- Problem 87m
- Problem 87n