We Are Interested in Testing to See If the Variance $\sigma$

question 64

Multiple Choice

We are interested in testing to see if the variance of a population is less than 7. The correct null hypothesis is

• A)\(\sigma\) < 7
• B)\(\sigma\)² \(\ge\) 7
• C)S < 49
• D)S > 49

---

Definitions:

Hypersensitive Response

A rapid and localized defense mechanism in plants that triggers cell death at the site of pathogen infection to limit its spread.

System-Acquired Resistance

A plant's immune response mechanism that provides protection against a wide range of pathogens following an initial infection.

Grand Rapids Lettuce

A variety of lettuce known for its crisp texture and resistance to diseases, often used in salads and other dishes.

Phytochrome

A photoreceptor protein in plants that absorbs light and mediates various growth and developmental processes.