A Confidence Interval Was Used to Estimate the Proportion of Statistics

question 49

Multiple Choice

A confidence interval was used to estimate the proportion of statistics students who are female. A random sample of 72 statistics students generated the following 90% confidence interval: (0.438, 0.642) . Using the information above, what total size sample would be necessary if we wanted to estimate the true proportion to within ±0.08 using 95% confidence?

• A) 105
• B) 150
• C) 420
• D) 597

---

Definitions:

Government Policy

The course of action or set of regulations adopted by a government to accomplish specific goals in the public interest.

Market Quantity

The total amount of a product or service that is available for purchase in a market at any given time.

Leading Questions

Leading questions are questions that suggest the answer or contains the information the examiner is looking to have confirmed.

Hypothetical Questions

Inquiries based on imagined or speculative scenarios, often used to explore potential reactions or outcomes.