Use the Following Information to Answer the Question

question 29

Multiple Choice

Use the following information to answer the question. A sprint duathlon consists of a 5 km run, a 20 km bike ride, followed by another 5 km run. The mean finish time of all participants in a recent large duathlon was 1.67 hours with a standard deviation of 0.25 hours. Suppose a random sample of 30 participants in the 40- 44 age group was taken and the mean finishing time was found to be 1.62 hours with a standard deviation of 0.40 hours.
-What is the standard error for the mean finish time of 30 randomly selected participants in the 40- 44 age group? Round to the nearest thousandth.

• A)0.250
• B)0.046
• C)0.055
• D)0.300

---

Definitions:

Korea

A country in East Asia, located on the Korean Peninsula, known for its rich history and significant cultural heritage, including art, music, and cuisine.

Neolithic Majiayao Culture

An archaeological culture that existed in China during the late Neolithic period, noted for its painted pottery.

Pottery

Pottery involves the creation of objects, typically vessels, from clay and other ceramic materials, which are shaped and then fired at high temperatures to achieve hardness.

Southern Song Period

Refers to the period of the Song Dynasty in China, from 1127 to 1279, known for its advancements in art, culture, and philosophy.