In a pediatric clinic a study is carried out to see how effective aspirin is in...

  

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In a pediatric clinic a study is carried out to see how effective aspirin is in reducing temperature. Twelve 5-year-old children suffering from influenza had their temperatures taken immediately before and 1 hour after administration of aspirin. The results are given below. Suppose we assume normality and want to test the hypothesis that aspirin is reducing the temperature. Body temperature (°F) before and after taking aspirin Subject Before After Difference 1 102.4 99.6 2.8 2 103.2 100.1 3.1 3 101.9 100.2 1.7 4 103.0 101.1 1.9 101.2 99.8 1.4 6. 100.7 100.2 0.5 7 102.5 101.0 1.5 8. 103.1 100.1 3 9 102.8 100.7 2.1 10 102.3 101.1 1.2 11 101.9 101.3 0.6 12 101.4 100.2 1.2 Total 21 a. What are the null and alternative hypotheses in this situation? b. Test whether there is a difference between mean body temperature before and after taking aspirin. Provide the test statistic, degrees of freedom for the test statistic, the p-value and a full conclusion. c. Calculate a 95% temperature before and after taking aspirin. nfidence inter for the true mean difference in body In a pediatric clinic a study is carried out to see how effective aspirin is in reducing temperature. Twelve 5-year-old children suffering from influenza had their temperatures taken immediately before and 1 hour after administration of aspirin. The results are given below. Suppose we assume normality and want to test the hypothesis that aspirin is reducing the temperature. Body temperature (°F) before and after taking aspirin Subject Before After Difference 1 102.4 99.6 2.8 2 103.2 100.1 3.1 3 101.9 100.2 1.7 4 103.0 101.1 1.9 101.2 99.8 1.4 6. 100.7 100.2 0.5 7 102.5 101.0 1.5 8. 103.1 100.1 3 9 102.8 100.7 2.1 10 102.3 101.1 1.2 11 101.9 101.3 0.6 12 101.4 100.2 1.2 Total 21 a. What are the null and alternative hypotheses in this situation? b. Test whether there is a difference between mean body temperature before and after taking aspirin. Provide the test statistic, degrees of freedom for the test statistic, the p-value and a full conclusion. c. Calculate a 95% temperature before and after taking aspirin. nfidence inter for the true mean difference in body

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