STATISTICAL TECHNIQUES AND TOOLS
TESTS OF SIGNIFICANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A mayor is concerned about the percentage of city residents who express disapproval of his job performance. His political committee pays for a newspaper ad, hoping to keep his disapproval rating below 21%. They will use a follow up poll to assess effectiveness. What are the correct null and alternative hypotheses?
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Ho:
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Ho:p=.20, Ha:p<.20
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Ho:p< .21, Ha:p= .21
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Ho:p= .21, Ha:p< .21
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Explanation:
Detailed explanation-1: -There are two options for a decision. They are “reject H0” if the sample information favors the alternative hypothesis or “do not reject H0” or “decline to reject H0” if the sample information is insufficient to reject the null hypothesis.
There is 1 question to complete.