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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The mean time it takes for a person to experience pain relief from aspirin is 25 minutes. A new ingredient is added to help speed up relief. Let µ denote the mean time to obtain pain relief with the new product. An experiment is conducted to verify if the new product works more quickly. What are the null and alternative hypotheses for the appropriate test of significance?
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H0:µ = 25 vs. Ha:µ ≠ 25
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H0:µ = 25 vs. Ha:µ < 25
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H0:µ < 25 vs. Ha:µ = 25
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H0:µ < 25 vs. Ha:µ > 25
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H0:µ = 25 vs. Ha:µ > 25
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Explanation:
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