The Kruskal-Wallis Test Is to Be Used to Determine Whether

question 37

Multiple Choice

The Kruskal-Wallis test is to be used to determine whether there is a significant difference in the satisfaction rating (alpha = 0.05) between three brands of boxed cake mix.Shoppers were asked to rate their satisfaction on various attributes and an aggregate satisfaction score ranging from 1-50 was computed.The following data were obtained: $$\begin{array} { c c c c c c } \text { Cake Mix A } & 19 & 21 & 25 & 22 & 33 \\\text { Cake Mix B } & 30 & 24 & 28 & 31 & 35 \\\text { Cake Mix C } & 39 & 32 & 41 & 42 & 27\end{array}$$ For this situation, the critical (table) chi-square value is _______.

• A)15.507
• B)7.815
• C)9.488
• D)5.991
• E)3.991

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Definitions:

Parasympathetic Nervous System

A division of the autonomic nervous system responsible for conserving energy and promoting "rest and digest" functions, counterbalancing the sympathetic nervous system.

Digestive System

A series of organs responsible for breaking down food into nutrients that can be absorbed by the body.

Pupils

The opening in the center of the iris of the eye, which regulates the amount of light that enters the eye to reach the retina.

Action Potential

A rapid, temporary change in electrical potential across a cell membrane, leading to the transmission of a nerve impulse along a neuron.