We know that smoking has all sorts of ill effects on people, and among other things there is evidence that it affects fertility. Weinberg and Gladen (1986) examined the effects of smoking on the ease with which women become pregnant. They took 586 women who had planned pregnancies, and asked them how many menstrual cycles it had taken for them to become pregnant after discontinuing contraception. They also sorted the women into whether they were smokers or nonsmokers. The data follow.
Does smoking affect the ease with which women become pregnant? (I do not recommend smoking as a birth control device.)
Answer to relevant QuestionsHow would you modify the analysis of the data in Exercise 19.8 if you also had the data on smoking behavior of the partners of these women? Three rival professors teaching English 1 all claim the honor of having the best students. To settle the issue, eight students are randomly drawn from each class and given the same exam. Copyright 2013 Cengage Learning. All ...Repeat the analysis in Exercise 20.2 using the normal approximation. In Exercise 20.2 Create a forest plot for these results. Calculate confidence limits on the mean effect size computed in the previous exercise. Bloch Panza, Landeros-Weisenberger, Leckman (2009) conducted a meta-analysis on the treatment of Attention-Deficit/Hyperactivity Disorder ...
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