The Heights (In Inches)of 20 Randomly Selected Adult Males Are $\alpha$

question 122

Essay

The heights (in inches)of 20 randomly selected adult males are listed below. Test the claim that the variance is
less than 6.25. Assume the population is normally distributed. Use $\alpha$ = 0.05 and confidence intervals. $$\begin{array} { l l l l l l l l l l } 70 & 72 & 71 & 70 & 69 & 73 & 69 & 68 & 70 & 71 \\67 & 71 & 70 & 74 & 69 & 68 & 71 & 71 & 71 & 72\end{array}$$

---

Definitions:

Corpus Callosum

A broad group of nerve fibers linking the brain's two hemispheres, enabling communication between them.

The Basal Ganglia

A group of structures in the brain involved in processing information related to movement, emotions, and learning.

Semipermeable

A type of membrane that allows certain substances to pass through it while blocking others, often used in biological and chemical contexts.

Cell Membranes

The semipermeable membranes that surround cells, controlling the movement of substances in and out of the cell.