It is believed that large doses of acetaminophen (the active ingredient in over the counter pain relievers like tylenol) may cause damage to the liver. a researcher wants to conduct a study to estimate the proportion of acetaminophen users who have liver damage. if she wants to limit the margin of error of her 98% confidence interval to be no more than 3%, what is the minimum number of subjects that she needs to recruit? [note: the researcher has no expectations about what the sample proportion should be ahead of time, so she – and you – should use p = 0.5 to get the most conservative estimate.]