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(d) Obtain a scatter plot of the 9 data points. (e) Find the value of the correlation coefficient for the 9 data points. (f) Use Excel with a = 0.05 to determine if there is a linear correlation. (g) What conclusion do you make about the possible effect of a single pair of values?

(d) Obtain a scatter plot of the 9 data points. (e) Find the value of the correlation coefficient for the 9 data points. (f) Use Excel with a = 0.05 to determine if there is a linear correlation. (g) What conclusion do you make about the possible effect of a single pair of values?

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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questions d e f g 

2. For this question use the following set of data points. Use Excel's CORREL function to find the value of the correlation coefficient. x |1112 2 2 333 10 12312 3 123 10 (a) Obtain a scatter plot of the 10 data points. (b) Find the value of the correlation coefficient for the 10 data points. (c) Use Excel with a = 0.05 to determine if there is a linear correlation. Now remove the point with coordinates (10, 10) so there are 9 pairs of points. (d) Obtain a scatter plot of the 9 data points. (e) Find the value of the correlation coefficient for the 9 data points. (f) Use Excel with a = 0.05 to determine if there is a linear correlation. (g) What conclusion do you make about the possible effect of a single pair of values?
Transcribed Image Text:2. For this question use the following set of data points. Use Excel's CORREL function to find the value of the correlation coefficient. x |1112 2 2 333 10 12312 3 123 10 (a) Obtain a scatter plot of the 10 data points. (b) Find the value of the correlation coefficient for the 10 data points. (c) Use Excel with a = 0.05 to determine if there is a linear correlation. Now remove the point with coordinates (10, 10) so there are 9 pairs of points. (d) Obtain a scatter plot of the 9 data points. (e) Find the value of the correlation coefficient for the 9 data points. (f) Use Excel with a = 0.05 to determine if there is a linear correlation. (g) What conclusion do you make about the possible effect of a single pair of values?
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