(4) The following table summarizes the results of an aptitude test given to six clerks to determine the correlation between test marks (x) and sales in the first month (y) in hundreds of dollars. Marks (x) 36 29 54 42 25 33 Sales (y) 48 45 90 72 42 50 i) Calculate the linear correlation coefficient and give your comment about the type of the relationship. ii) Construct the linear regression line that represents this relation. iii) Predict the sales of a vendor who obtains 47 on the test. iv) What is the amount of sale corresponding to the score 23?

(4) The following table summarizes the results of an aptitude test given to six clerks to determine the correlation between test marks (x) and sales in the first month (y) in hundreds of dollars. Marks (x) 36 29 54 42 25 33 Sales (y) 48 45 90 72 42 50 i) Calculate the linear correlation coefficient and give your comment about the type of the relationship. ii) Construct the linear regression line that represents this relation. iii) Predict the sales of a vendor who obtains 47 on the test. iv) What is the amount of sale corresponding to the score 23?

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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