Data Set 10 in Appendix B includes the amounts of tar (mg per cigarette) in the king-size cigarettes, the 100-mm menthol cigarettes, and the 100-mm nonmenthol cigarettes. The king-size cigarettes are nonfiltered, nonmenthol, and nonlight. The 100-mm menthol cigarettes are filtered and nonlight. The 100-mm nonmenthol cigarettes are filtered and nonlight. Use a 0.05 significance level to test the claim that the three categories of cigarettes yield the same mean amount of tar. Given that only the king-size cigarettes are not filtered, do the filters appear to make a difference?
Answer to relevant QuestionsThe table below lists body temperatures obtained from randomly selected subjects. The temperatures are categorized according to gender and whether the subject smokes. Using a 0.05 significance level, test for an interaction ...The display below results from using the one-way analysis of variance test. a. What is the null hypothesis? b. Assuming a 0.05 significance level, what conclusion is indicated by the displayed results? An important step in conducting the sign test is to determine whether the sample data contradict the alternative hypothesis H1 For the sign test described in Exercise 1, identify the null hypothesis and the alternative ...A study addressed the issue of whether women have the ability to predict the sex of their babies. Among 104 recruited subjects, 53% correctly guessed the sex of the baby. Use a 0.05 significance level to test the claim that ...For the matched pairs listed in Exercise 1, identify the following components used in the Wilcoxon signed-ranks test: a. Differences d b. The ranks corresponding to the nonzero values of |d| c. The signed ranks d. The sum of ...
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