Answered: Which statistical test do you use when…

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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Which statistical test do you use when you want to compare the change in average of group to the average of another group before and after a treatment?

Subgroups Before
After
A
75%
25%
72%
22%
Group
Fire
80%
30%
D
76%
77%
E
Group
69%
71%
Ice
F
78%
79%

Expert Solution

Step 1

The two-way ANOVA model is used for comparing the mean differences of the dependent variable (quantitative) based on levels of independent variable (categorical). Both the dependent and independent variables have more than or equal to 2 levels. In this hypothesis test, the effect of the independent variables with different levels on the dependent variable with different level is studied.

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