The Genetics and IVF Institute conducted a clinical trial of its methods for gender selection. As of this writing, 239 of 291 babies born to parents using the YSORT method were boys. Use a 0.01 significance level to test the claim that the YSORT method has no effect. Use the sign test for the claim involving nominal data.
Answer to relevant QuestionsA 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 ...Refer to Data Set 19 in Appendix B for the amounts (in oz) in cans of regular Coke. The cans are labeled to indicate that the contents are 12 oz of Coke. Use a 0.05 significance level to test the claim that cans of Coke are ...Refer to Data Set 12 in Appendix B and use the heights of U.S. presidents and their main opponents in the presidential campaigns to test the claim that there is no difference. Use the Wilcoxon signed-ranks test to test the ...Refer to Table 13-2 in Section 13-1 and identify the efficiency of the Wilcoxon rank-sum test. What does that value tell us about the test? The Mann-Whitney U test is equivalent to the Wilcoxon rank-sum test for independent samples in the sense that they both apply to the same situations and always lead to the same conclusions. In the Mann-Whitney U test we ...
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