Students of Two Sections of a History Course Took a Common

question 80

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 ,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:

Developmental Explanation

An approach that interprets behaviors or traits based on changes that occur through an organism's growth and development stages.

Song Matching

A behavioral phenomenon where a bird responds to the song of another individual with a song that is similar in structure and pattern.

Young Adult

An individual in the transitional phase of growth and development between adolescence and full adulthood, typically considered to be in their late teens to early twenties.

Neighbor's Song

The vocalizations produced by conspecific birds located in adjacent territories, which can influence territory establishment, mate attraction, and competitive interactions.