A Wooden Object from a Prehistoric Site Has a Carbon-14

question 10

Multiple Choice

A wooden object from a prehistoric site has a carbon-14 activity of 10 counts per minute (cpm) compared to 40 cpm for new wood. If carbon-14 has a half-life of 5730 years, what is the age of the wood?

• A)1430 yr
• B)5730 yr
• C)11,500 yr
• D)17,200 yr
• E)22,900 yr

Distinguish between point and interval estimates.

Identify characteristics of good estimators: unbiasedness, consistency, and relative efficiency.

Define and differentiate between consistency and unbiasedness of estimators.

Identify the criteria for choosing between different estimators.