Find a 95% Confidence Interval for the True Population Proportion

question 200

Multiple Choice

Find a 95% confidence interval for the true population proportion.
-In a random sample of 250 births at one hospital, 34% were by Caesarean section.

• A)30.8% to 37.2%
• B)33.9% to 34.1%
• C)27.7% to 40.3%
• D)33.6% to 34.4%

---

Definitions:

Margin Of Safety

The difference between actual or expected sales and sales at the break-even point; it measures the risk of incurring a loss.