Use the Traditional Method to Test the Given Hypothesis $$\begin{array} { l l l l l l l } 115 & 128 & 107 & 109 & 116 & 124 & 135 \\127 & 115 & 104 & 118 & 126 & 129 & 133\end{array}$$

question 26

Essay

Use the traditional method to test the given hypothesis. Assume that the population is normally
distributed and that the sample has been randomly selected. 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. $$\begin{array} { l l l l l l l } 115 & 128 & 107 & 109 & 116 & 124 & 135 \\127 & 115 & 104 & 118 & 126 & 129 & 133\end{array}$$

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Definitions:

Poverty

The state of having insufficient financial resources or material possessions for a standard of living considered acceptable in a society.

Malaria

A life-threatening disease transmitted to humans by the bite of infected Anopheles mosquitoes, characterized by fever, chills, and flu-like symptoms.

DDT

Dichloro-Diphenyl-Trichloroethane, a synthetic pesticide known for its environmental impacts, including wildlife harm and contamination.

Breeding Areas

Specific environments or habitats where animals reproduce and rear their young.