How Many Years Old Is a Fossilized Tree If It

question 21

Multiple Choice

How many years old is a fossilized tree if it contains 25% of its original carbon-14? (Assume that the half-life of carbon-14 = 5,730 years.)

• A) 1,433
• B) 5,730
• C) 11,460
• D) 17,190
• E) 22,920

---

Definitions:

Sign Test

A non-parametric test used to evaluate the difference between the median of a paired sample and a hypothesized value.

Identical Medians

The statistical assessment that two or more groups have the same median value in their data distributions.

Identical Probability Distributions

Probability distributions that are exactly the same in terms of their statistical properties such as mean, variance, and skewness.

Single Population

Refers to a group or set of entities sharing one or more characteristics, from which data can be collected and analyzed as a unified whole.