SOLUTION: Given H0: p &#8805; 80% and Ha: p < 80%, determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.

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Question 287741: Given H0: p ≥ 80% and Ha: p < 80%, determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Given H0: p ≥ 80% and Ha: p < 80%, determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.
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The alternate hypotheses, Ha, ALWAYS determines the
type of test.
If Ha: p < # the test is left tail
If Ha: p is not equal to # the test is two tail
If Ha: p > # the test is right tail
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Your Problem:
Since you have Ha: p < 80%, the test is left tail.
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Cheers,
Stan H.