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.

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