Unit 4 Homework Set: Problem 17 Previous Problem Problem List Next Problem (2 points) Suppose a group of 700 smokers (who ail wanted to give up smoking) were randomly assigned to receive an antidepressant drug or a placebo for six weeks. Of the $12 patients who received the antidepressant drug, 90 were not smoking one year later. Of the 188 patients who received the placebo, 94 were not smoking one year later. Given the null hypothesis Ho : (p, - p,) = 0 and the alternative hypothesis H. : (p, - p.) # 0, conduct a test to see if taking an antidepressant drug can help smokers stop smoking. Use a = 0.1 () The rejection region in 1=| > (b) The test statistic is = = The final conclustion in ()A. We can reject the null hypothesis that (p, - p, ) = 0 and accept that (p, - p.) / 0. B. There is not sufficient evidence to reject the null hypothesis that (p, - p,) = 0