Question

Is the test below left-, right-, or two-tailed? H0:p=0.39, Ha:p≠0.39 Select the correct answer below: The hypothesis test is two-tailed. The hypothesis test is left-tailed. The hypothesis test is right-tailed.

Answer 1

The hypothesis test is a two-tail test

Explanation:

The test hypothesis:

Null hypothesis H₀ p = 0,39 or p = p₀

Where p₀ is a nominal proportion (established proportion) and

Alternate hypothesis Hₐ p ≠ 0,39 or p ≠ p₀

Is a two-tail test, (≠) means different, we have to understand that different implies bigger and smaller than something.

For a test to be one tail-test, it is necessary an evaluation only in one sense in relation to the pattern ( in this case the proportion )