Among a Sample of 76 Students Selected at Random from One

question 13

Multiple Choice

Among a sample of 76 students selected at random from one college, the mean number of siblings is $1.5$ with a standard deviation of $1.2$ . Find the $95 \%$ confidence interval. Round your answer to two decimal places.

• A) \(1.47 < \mu < 1.53\)
• B) \(1.22 < \mu < 1.78\)
• C) \(74.04 < \mu < 77.96\)
• D) \(1.36 < \mu < 1.64\)

---

Definitions:

Foreign Currency

Money or a form of currency that is used in a country other than one's own, typically involved in foreign exchange markets for trading or investment purposes.

Over-The-Counter Market

A decentralized market where securities are traded directly between two parties without a central exchange or broker.

NASDAQ System

A global electronic marketplace for buying and selling securities, as well as the benchmark index for U.S. technology stocks.

Unlisted Securities

Securities that are not traded on a formal exchange, often having fewer regulatory requirements.