How to quit smoking. Nicotine patches are often used to help smokers quit. Does giving
Chapter 0, Problem 21.2(choose chapter or problem)
How to quit smoking. Nicotine patches are often used to help smokers quit. Does giving medicine to fight depression help? A randomized double-blindexperiment assigned 244 smokers who wanted to stop to receive nicotine patchesand another 245 to receive both a patch and the antidepression drug bupropion.After a year, 40 subjects in the nicotine patch group and 87 in thepatch-plus-drug group had abstained from smoking.3 Give a 99% confidenceinterval for the difference (treatment minus control) in the proportion of smokerswho quit. Follow the four-step process as illustrated in Examples 21.1 and 21.2.
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