Listen Quit Smoking: Previous studies suggest that use of nicotine-replacement therapies and antidepressants can help people stop smoking. The New England Journal of Medicine published the results of a double-blind, placebo-controlled experiment to study the effect of nicotine patches and the antidepressant bupropion on quitting smoking. The target for quitting smoking was the 8th day of the experiment. In this experiment researchers randomly assigned smokers to treatments. Of the 176 smokers taking a placebo, 27 stopped smoking by the 8th day. Of the 260 smokers taking only the antidepressant bupropion, 81 stopped smoking by the 8th day. Calculate the estimated standard error for the sampling distribution of differences in sample proportions. What is the value of the estimated standard error? 0.041 0.039 0.040 0.002 Previous Page Next Page Page 16 of 2 MacBook Pro