A researcher is attempting to determine whether a novel drug affects the length of cilia growing in the lumen of the gut of rats. All groups have 30 individuals, with group A being exposed to a sugar pill, group B a low dose and group c high dose. The researcher in a hurry only calculates the sum of squares and degrees of freedom for the model and residuals, starting the following anova table. a)To 2 decimal places, what is the mean squares of the treatment? b)To 2 decimal places what is the mean squares for the residual error? c)What is the effect size (eta-squared, also known as the r-squared) of this treatment, to two decimal places?
A researcher is attempting to determine whether a novel drug affects the length of cilia growing in the lumen of the gut of rats. All groups have 30 individuals, with group A being exposed to a sugar pill, group B a low dose and group c high dose. The researcher in a hurry only calculates the sum of squares and degrees of freedom for the model and residuals, starting the following anova table. a)To 2 decimal places, what is the mean squares of the treatment? b)To 2 decimal places what is the mean squares for the residual error? c)What is the effect size (eta-squared, also known as the r-squared) of this treatment, to two decimal places?
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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A researcher is attempting to determine whether a novel drug affects the length of cilia growing in the lumen of the gut of rats. All groups have 30 individuals, with group A being exposed to a sugar pill, group B a low dose and group c high dose. The researcher in a hurry only calculates the sum of squares and degrees of freedom for the model and residuals, starting the following anova table.
a)To 2 decimal places, what is the mean squares of the treatment?
b)To 2 decimal places what is the mean squares for the residual error?
c)What is the effect size (eta-squared, also known as the r-squared) of this treatment, to two decimal places?
Transcribed Image Text:Df
2
Sum Sq
2.96
25.33
Mean Sq
F value
Pr(-F)
treatment
Residuals
87
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