12.33Xr12-33A random sample of American adults wasasked whether or not they smoked cigarettes….

12.33Xr12-33A random sample of American adults wasasked whether or not they smoked cigarettes. Thosewho responded affirmatively were asked how manycigarettes they smoked per day. Assuming that thereare50 million American adults who smoke, esti-mate with 95% confidence the number of cigarettessmoked per day in the United States