Which of These Statements Is Correct About One- and Two-Tailed

question 13

Multiple Choice

Which of these statements is correct about one- and two-tailed tests?

• A) A statistical model that tests a directional hypothesis is called a one-tailed test, whereas one testing a non-directional hypothesis is called a two-tailed test
• B) A statistical model that tests a non-directional hypothesis is called a one-tailed test, whereas one testing a directional hypothesis is called a two-tailed test.
• C) A two-tailed test is a more powerful test than a one-tailed test.
• D) A one-tailed test is a more accurate test than a two-tailed test.

---

Definitions:

Nylon

A durable synthetic polymer, primarily used in the production of fabrics, plastics, and fibers.

Rayon

A semi-synthetic fiber made from regenerated cellulose, used in a wide variety of textiles and clothing.

Carboxylic Acid

Organic acids characterized by the presence of at least one carboxyl group, playing significant roles in biochemistry and industry.

Amine End

The part of an amine molecule where the nitrogen atom is located, often involved in bonding due to its lone pair of electrons.