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Below a scatter diagram for x and y. The sample correlation coefficient for the data r = -0.823. 100 90 80 70 60 <<-50 40 30 20 10 0 5 10 15 20 25 30 35 Is there a linear correlation between x and y? Use the Critical Values for Correlation Coefficient" table provided to justify your answer. f there is linear correlation, is it positive or negative?

Below a scatter diagram for x and y. The sample correlation coefficient for the data r = -0.823. 100 90 80 70 60 <<-50 40 30 20 10 0 5 10 15 20 25 30 35 Is there a linear correlation between x and y? Use the Critical Values for Correlation Coefficient" table provided to justify your answer. f there is linear correlation, is it positive or negative?

MATLAB: An Introduction with Applications
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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please answer part a and b using given info and graphs. thanks!
Below a scatter diagram for x and y. The sample correlation coefficient for the data r = -0.823. 100 90 80 70 60 <-50 40 30 20 10 0 S 10 15 20 25 30 35 Is there a linear correlation between x and y? Use the "Critical Values for Correlation Coefficient table provided to justify your answer. If there is linear correlation, is it positive or negative?
Transcribed Image Text:Below a scatter diagram for x and y. The sample correlation coefficient for the data r = -0.823. 100 90 80 70 60 <-50 40 30 20 10 0 S 10 15 20 25 30 35 Is there a linear correlation between x and y? Use the "Critical Values for Correlation Coefficient table provided to justify your answer. If there is linear correlation, is it positive or negative?
3 4 S 6 7 9 Critical Values for Correlation Coefficient 0.997 0.950 0.878 0.811 0.754 0.707 0.666 10 0.632 17 11 0.602 18 12 0.576 19 13 0.553 20 14 0.532 21 15 0.514 22 16 0.497 23 24 25 26 0.482 0.468 0.456 0.444 27 0.433 28 0.423 29 0.413 30 0.404 0.396 0.388 0.381 0.374 0.367 0.361
Transcribed Image Text:3 4 S 6 7 9 Critical Values for Correlation Coefficient 0.997 0.950 0.878 0.811 0.754 0.707 0.666 10 0.632 17 11 0.602 18 12 0.576 19 13 0.553 20 14 0.532 21 15 0.514 22 16 0.497 23 24 25 26 0.482 0.468 0.456 0.444 27 0.433 28 0.423 29 0.413 30 0.404 0.396 0.388 0.381 0.374 0.367 0.361
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