Answered: Understanding the Concepts and SkillsIn…

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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Understanding the Concepts and Skills
In each of Exercises, suppose that you want to perform a hypothesis test to compare several population means, using independent samples. In each case, decide whether you would use the one-way ANOVA test, the Kruskal–Wallis test, or neither of these tests.
Preliminary data analyses of the samples suggest that the distributions of the variable are not normal and have quite different shapes.

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The one-way ANOVA test is a parametric test which requires the samples to be normally distributed but non-parametric tests are distribution free tests or that are based on very less assumptions (for non-normal distributions) that includes the Kruskal–Wallis test.

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