Suppose that 935 smokers each received a nicotine patch, which delivers nicotine to the bloodstream at a much slower rate than cigarettes do. Dosage was decreased to 0 over a 12- week period. Of these 935 people, 245 were still not smoking 6 months after treatment. Assume this sample is representative of all smokers.
a. Use the given information to estimate the proportion of all smokers who, when given this treatment, would refrain from smoking for at least 6 months.
b. Verify that the conditions needed in order for the margin of error formula to be appropriate are met.
c. Compute the margin of error.
d. Interpret the margin of error in the context of this problem.