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

question 183

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. $$\begin{array} { | l l l l l l l | } \hline 115 & 128 & 107 & 109 & 116 & 124 & 135 \\127 & 115 & 104 & 118 & 126 & 129 & 133 \\\hline\end{array}$$

---

Definitions:

Small Lenses

Optical components designed to focus or diverge light, typically used in cameras, glasses, and scientific instruments.

PASS Method

Acronym for Pull, Aim, Squeeze, and Sweep, a technique used for effectively using a fire extinguisher.

Fire Extinguisher

A device that discharges a substance to put out a fire, often by cooling the fire, cutting off its oxygen supply, or both.

Substage

A division or smaller part that forms a component of a larger stage or phase.