Suppose we want to test the claim that less than $1 / 2$ of Americans are in favor of raising the voting age to 21 . Is the hypothesis test left-tailed, right-tailed, or two-tailed?
A) Left-tailed
B) Right-tailed
C) Two-tailed

Question

Quizplus · Accepted Answer

The hypothesis is testing if the proportion is less than a specific value ($1/2$), which indicates a left-tailed test.

Suppose We Want to Test the Claim That Less Than 1/21 / 21/2

Suppose We Want to Test the Claim That Less Than $1 / 2$