-+++Table 2: Crack Experiment for Exercise 2A B C D Treatment Combination(1)ReplicateI II7.0376.37614.707 15.219|++++ 1བྱ॰༤༠སྦྱོ སྦྱོཋཏྟཱུabab11.635 12.08917.273 17.815сас10.403 10.1514.368 4.098bcabc9.360 9.25313.440 12.923d8.561 8.951ad16.867 17.052bd13.876 13.658abd19.824 19.639cd11.846 12.337acd6.1255.904bcd11.190 10.935abcd15.653 15.053Question 3Continuation of Exercise 2. One of the variables in the experiment described in Exercise 2, heat treatmentmethod (C), is a categorical variable. Assume that the remaining factors are continuous.(a) Write two regression models for predicting crack length, one for each level of the heat treatment methodvariable. What differences, if any, do you notice in these two equations?(b) Generate appropriate response surface contour plots for the two regression models in part (a).(c) What set of conditions would you recommend for the factors A, B, and D if you use heat treatment methodC = +?(d) Repeat part (c), assuming that you wish to use heat treatment method C = -.

Answered: Image /qna-images/answer/4dfc934d-5c9b-4a29-8013-43b3e8aa604a.jpg

Answered: - + ++ Table 2: Crack Experiment for…

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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