Question

suppose we want to test the claim that the majority of adults are in favor of raising the voting age to 21. is the hypothesis test left - tailed, right - tailed, or two - tailed?

a. two - tailed
b. right - tailed
c. left - tailed

Explanation:

A majority means \( p>0.5 \). In hypothesis testing, when the alternative hypothesis is \( H_1:p > p_0\) (here \(p_0 = 0.5\)), it is a right - tailed test.

Answer:

B. Right - tailed