A Study Was Recently Conducted to Estimate the Mean Cholesterol

question 173

Multiple Choice

A study was recently conducted to estimate the mean cholesterol for adult males over the age of 55 years. From a random sample of n = 10 men, the sample mean was found to be 242.6 and the sample standard deviation was 73.33. To find the 95 percent confidence interval estimate for the mean, the correct critical value to use is:

• A) 1.96
• B) 2.2281
• C) 2.33
• D) 2.2622

---

Definitions:

Securities Exchange Act

A U.S. federal law enacted in 1934 to govern the trading of securities, such as stocks and bonds, in the secondary market, aiming to promote transparency, fairness, and integrity in the marketplaces.

SEC Rule 10b-5

A regulation by the Securities and Exchange Commission that prohibits fraud and misrepresentation in securities trading.

Privity

A doctrine in contract law that holds that contracts are private agreements between the parties who have mutually consented to them, and thus, only those parties have the rights and liabilities under the contract.

Negligence

A failure to behave with the level of care that someone of ordinary prudence would have exercised under the same circumstances, leading to harm or damage.