Find the Critical Value or Values Of $\chi ^ { 2 }$

question 123

Essay

Find the critical value or values of $\chi ^ { 2 }$ based on the given information.
-For randomly selected adults, IQ scores are normally distributed with a standard deviation of 15. The scores of
14 randomly selected college students are listed below. Use a 0.10 significance level to test the claim that the
standard deviation of IQ scores of college students is less than 15. Round the sample standard deviation to three
decimal places. $$\begin{array} { c c c c c c c } 115 & 128 & 107 & 109 & 116 & 124 & 135 \\127 & 115 & 104 & 118 & 126 & 129 & 133\end{array}$$

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Definitions:

Temporal Lobes

Regions located on the sides of the brain, crucial for processing sensory input, particularly related to hearing, and important for memory formation.

Parietal Lobes

The parietal lobes are regions of the cerebral cortex located at the upper back area of the skull, crucial for processing sensory information regarding the location of parts of the body as well as interpreting visual information and processing language and mathematics.

Perception Of Pain

The subjective interpretation and experience of discomfort or suffering that can have physical and emotional components.

Gustatory System

The sensory system responsible for the perception of taste and flavor.