A Student Wanted to Quickly Construct a 95% Confidence Interval

question 37

Multiple Choice

A student wanted to quickly construct a 95% confidence interval for the average age of students in her statistics class. She randomly selected 9 students. Their average age was 19.1 years with a standard deviation of 1.5 years. What is the 95% confidence interval for the population mean?

• A) [0.97, 3.27]
• B) [15.64, 22.56]
• C) [17.97, 20.23]
• D) [17.95, 20.25]
• E) [17.42, 20.78]

Understand special order decisions in costing.

Analyze the impact of production and sales levels on income.

Understand how to construct and interpret common size financial statements.

Understand the concept of trend analysis using base years in financial statements.

---

Definitions:

Ambiguous Actions

Activities or behaviors that are unclear or open to multiple interpretations due to lack of clear intent.

Humans

Members of the species Homo sapiens, characterized by their ability to think critically, communicate through complex language, and create culture.

Indirect Aggression

Behavior intended to harm someone without face-to-face confrontation, through methods such as gossiping or spreading rumors.

Relational Aggression

A type of aggression in social relationships, characterized by harm through manipulation, gossip, or exclusion.