Currently Available Evidence Has Shown the First Humans in the Americas

question 64

Multiple Choice

Currently available evidence has shown the first humans in the Americas

• A) arrived at least 15,000 years ago.
• B) came at least 725,000 years ago.
• C) arrived, according to genetic evidence, from Antarctica in 7219 B.C.E.
• D) came from the island of Honshu during the Egyptian Middle Kingdom.
• E) came from Polynesia approximately 1000 C.E.

---

Definitions:

Type I Error

The statistical error that occurs when a true null hypothesis is incorrectly rejected.

Correct Decision

A conclusion or judgement that is accurate, based on the evaluation of evidence or data.

Type II Error

Occurs in hypothesis testing when a false null hypothesis is not rejected, leading to the false conclusion that a difference or effect does not exist when it actually does.

Power

The probability that a statistical test will correctly reject a false null hypothesis; related to the capability to detect an effect if there is one.