Determine a left-tailed, right-tailed, or two-tailed test from a given null and alternative hypothesis.

Susan hypothesizes that the students of a private school will score higher than the general population. Susan records a sample mean equal to 578 and states the hypothesis as=572vs >572.

Select the best description for this type of test.

• a.)Left-tailed test
• b.)Lower-tailed test
• c.)Two-tailed test
• d.)Right-tailed test