A Professor Applies the Variance in Scores Between Two Sections

question 71

Multiple Choice

A professor applies the variance in scores between two sections that he teaches.The students of each section took the same test.The random samples drawn from the observations yield sample variances of = 203.15 and = 474.42 for samples of n₁ = 13 and n₂ = 16,respectively.Which of the following is a 99% confidence interval for the ratio of the population variances?

• A) [0.1540,2.7809]
• B) [0.1008,2.0217]
• C) [0.1386,3.0895]
• D) [0.0907,1.8198]

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Definitions:

Joint Products

Products that are produced together from the same process or raw materials but are sold as separate items.

Joint Cost Allocation

The process of assigning the costs of a production process that yields multiple products to those products in a rational and consistent manner.

Split-Off

A point in the manufacturing process where multiple products are generated from a single process or input.

Separable Processing Costs

Costs that are incurred after the split-off point where multiple products are generated from a common process and can be directly attributable to each product.