Question 3 The following table contains information on the time that each of 10 steel samples were immerssed (in days) in a saline solution and the corrosion rate CR (mmpy) of them after the specified time Time (day) 7 9 11 13 15 17 19 21 23 25 CR (mmpy) 0.22 0.36 0.38 0.45 0.51 0.55 0.56 0.6 0.59 0.7 1- Construct a scatter diagram for these data. Does the scatter diagram exhibit a linear relationship between the ommersion time and the corrosion rate? 2- Find the predictive regression line of CR on time. 3- Give a brief interpretation of the values of a and b calculated in part 2. 4 Plot the predictive regression line on the scatter diagram of part 1, and show the errors by drawing vertical lines between scatter points and the predictive regression line. 5- Calculate the predicted CR for a steel sample that immersed for 14 days in the saline. 6- Calculate the predicted CR for a steel sample that immersed for 14 days in the saline. Comment on this finding.

Question 3 The following table contains information on the time that each of 10 steel samples were immerssed (in days) in a saline solution and the corrosion rate CR (mmpy) of them after the specified time Time (day) 7 9 11 13 15 17 19 21 23 25 CR (mmpy) 0.22 0.36 0.38 0.45 0.51 0.55 0.56 0.6 0.59 0.7 1- Construct a scatter diagram for these data. Does the scatter diagram exhibit a linear relationship between the ommersion time and the corrosion rate? 2- Find the predictive regression line of CR on time. 3- Give a brief interpretation of the values of a and b calculated in part 2. 4 Plot the predictive regression line on the scatter diagram of part 1, and show the errors by drawing vertical lines between scatter points and the predictive regression line. 5- Calculate the predicted CR for a steel sample that immersed for 14 days in the saline. 6- Calculate the predicted CR for a steel sample that immersed for 14 days in the saline. Comment on this finding.

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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