The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. What parameter is being tested?
H0: σ = 125
H1: σ ≠ 125
Is the hypothesis test left-tailed, right-tailed, or two-tailed?
Two-tailed test
Left-tailed test
Right-tailed test
What parameter is being tested?