If a hypothesis test is conducted for a population mean,a null and alternative hypothesis of the form:
H₀ : μ = 100
H_A : μ ≠ 100
will result in a one-tailed hypothesis test since the sample result can fall in only one tail.

Question

Quizplus · Accepted Answer

The given null and alternative hypotheses are of the form μ = 100 and μ ≠ 100, respectively, which is a two-tailed hypothesis test. In a one-tailed hypothesis test, the alternative hypothesis would have a directional relationship (e.g., μ > 100 or μ < 100), indicating which tail of the distribution the sample result is expected to fall in.

If a Hypothesis Test Is Conducted for a Population Mean,a