A Random Sample of 20 Observations Is Selected from a Normally

question 12

Multiple Choice

A random sample of 20 observations is selected from a normally distributed population. The sample variance is 12. In the 95% confidence interval for the population variance, the upper limit will be:

• A) 6.940
• B) 7.564
• C) 22.536
• D) 25.599
• E) 27.392

---

Definitions:

General-to-specific

A pattern of organization where information is presented from broad concepts to detailed points, often used in writing and speech.

Problem-solution

A text structure that presents a problem and offers one or more solutions for it.

Complaint Letter

A letter that expresses dissatisfaction with a product or service.

Progress Report

A document that outlines the current status of a project, including what has been accomplished, plans for the future, and any issues encountered.