England Journal of article by Dr Douglas Jorenby and colleagues comparing different treatments to help patients stop smoking Two

Question

England Journal of article by Dr Douglas Jorenby and colleagues comparing different treatments to help patients stop smoking Two of the four treatments were a placebo and a nicotine patch The subjects were treated and the number of subjects not smoking after 6 months was recorded The results are summarized in the table below Treatment Subjects participating Subjects not smoking After Six Months 30 52 Placebo 160 Nicotine Patch 244 Note that using the above data a 95 confidence interval for the proportion of patients using a placebo who were not smoking 6 months later is 0 127 p 0 248 Calculate the 95 confidence interval for the proportion of patients using a nicotine patch who were not smoking 6 months later Show all work Round to 3 decimal places 8 pts b Using a scale appropriate for the two confidence intervals draw the two confidence intervals for the placebo and the nicotine patch on a number line Label each so that they can be distinguished from each other Use a ruler and

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