A researcher conducts a one-way ANOVA involving three groups. When she analyzes the data she realizes the data seriously violate the assumptions underlying parametric ANOVA. Therefore, she decides to use the Kruskal-Wallis test to conclude with regard to H 0. The data are given below. 
Using a = 0.05, H crit = _________.
Definitions:
Night Vision
The ability to see in low-light conditions, often enhanced by technology in humans but naturally better in some animal species.
Cone Cells
Photoreceptor cells in the retina of the eye responsible for color vision and visual acuity under bright light conditions.
Retinal Neurons
Specialized nerve cells located in the retina that process visual information and transmit it to the brain.
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