Students of Two Sections of a History Course Took a Common

question 47

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]

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Definitions:

Opportunity Cost

is the value of the next best alternative forgone as a result of making a particular choice, highlighting the trade-offs in decision-making.

Absolute Advantage

The ability of a country or individual to produce a good or service more efficiently than others, using fewer resources.

Terms Of Trade

How much of one good exchanges for a unit of another good.

Comparative Advantage

The ability of a country or entity to produce a particular good or service at a lower opportunity cost than others, leading to more efficient international trade.