b. What is the value of the correlation coefficient for all 10 data points? (Simplify your answer. Round to three decimal places as needed.)
b. What is the value of the correlation coefficient for all 10 data points? (Simplify your answer. Round to three decimal places as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![Refer to the accompanying scatterplot. a. Examine the pattern of all 10 points and subjectively determine whether there appears to be a strong correlation between x and y. b. Find the value of the correlation coefficient
r and determine whether there is a linear correlation. c. Remove the point with coordinates (1,1) and find the correlation coefficient r and determine whether there is a linear correlation. d. What do you conclude about
the possible effect from a single pair of values?
Click here to view a table of critical values for the correlation coefficient
Ay
10-
Table of critical values
10
a. Do the data points appear to have a strong linear correlation?
x = .05
01
No
4
950
990
Yes
878
959
b. What is the value of the correlation coefficient for all 10 data points?
81
,917
754
875
(Simplify your answer. Round to three decimal places as needed.)
834
798
(765
707
666
632
6.
10
11
602
.735
12
576
708
13
553
684
.532
514
14
661
15
641
16
497
623
17
482
.606
18
468
590
575
19
456
20
444
561
25
396
.505
...
...](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1f1c4233-17e3-4831-af40-395f9348a588%2F0b2a23d5-938a-4a3c-8abe-e1d8509cda7b%2F7cx0mof_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Refer to the accompanying scatterplot. a. Examine the pattern of all 10 points and subjectively determine whether there appears to be a strong correlation between x and y. b. Find the value of the correlation coefficient
r and determine whether there is a linear correlation. c. Remove the point with coordinates (1,1) and find the correlation coefficient r and determine whether there is a linear correlation. d. What do you conclude about
the possible effect from a single pair of values?
Click here to view a table of critical values for the correlation coefficient
Ay
10-
Table of critical values
10
a. Do the data points appear to have a strong linear correlation?
x = .05
01
No
4
950
990
Yes
878
959
b. What is the value of the correlation coefficient for all 10 data points?
81
,917
754
875
(Simplify your answer. Round to three decimal places as needed.)
834
798
(765
707
666
632
6.
10
11
602
.735
12
576
708
13
553
684
.532
514
14
661
15
641
16
497
623
17
482
.606
18
468
590
575
19
456
20
444
561
25
396
.505
...
...
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