(By-Hand) The following cubic polynomial (k = 3) regression equation models thefiber content (grams) y from the sugar content (grams) x for n = 12 brands ofbreakfast cereal.SSResid=57.3629SSTotal = 566.3165 ŷ= 182.4431 + 14.0755x+1.6971x² -0.9034x³ Part f:Test the utility of the above cubic polynomial regression model, and be sure to showand label all six steps. Show your work.Part g.Compute and interpret a 95% confidence interval for the slope of the x term inthis cubic polynomial regression model. Show your work. [Note that Sb₁ = 0.7627.]

Answered: Image /qna-images/answer/02943840-6e38-4f42-a08a-dfc92b4accb3.jpg

Answered: Part f: Test the utility of the above…

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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