If the alternative hypothesis states that the mean is $\textbf{ not }$ 40 kg, what is the rejection region for the hypothesis test?
A) both tails
B) lower or left tail
C) upper or right tail
D) centre
E) no tail

Question

If the alternative hypothesis states that the mean is $\textbf{         not }$  40 kg, what is the rejection region for the hypothesis test?
A) both tails
B) lower or left tail
C) upper or right tail
D) centre
E) no tail

Quizplus · Accepted Answer

If the alternative hypothesis states that the mean is not 40 kg, it means we are testing for a two-tailed hypothesis because we want to see if the mean is either significantly less than or greater than 40 kg. Therefore, the rejection region will be both tails.

If the Alternative Hypothesis States That the Mean Is not \textbf{ not } not

If the Alternative Hypothesis States That the Mean Is $\textbf{ not }$