Students of Two Sections of a History Course Took a Common

question 43

Multiple Choice

Students of two sections of a history course took a common final examination. The course instructor examines the variance in scores between the two sections. He selects random samples of n₁ = 11 and n₂ = 16 with sample variances of and = 200, respectively. Assuming that the population distributions are normal, construct a 90% confidence interval for the ratio of the population variance.

• A) [0.90, 2.41]
• B) [0.50, 2.00]
• C) [0.25, 4.00]
• D) [0.79, 5.70]

---

Definitions:

Structure

In chemistry, this relates to the arrangement of atoms within a molecule, determining its physical and chemical properties.

Organic Product

A molecule that has been produced as a result of an organic reaction, prominently featuring carbon atoms in its structure.

Reaction

A process in which substances, the reactants, are converted into different substances, the products, involving rearrangement of atomic or molecular structures.

Gilman Reagent

Organometallic compounds of the form R2CuLi, utilized in organic chemistry for carbon-carbon bond formation reactions.