a coating that weighs at least 2.00 mg is needed to impart adequate shelf life to a pharmaceutical tablet. a random sampling of 200 tablets revealed that 11 failed to meet this requirement. changes in the method used to coat the tablets lowered the percentage of rejects from 5.5% to 2.2%. how many tablets should be taken for inspection if the permissible relative standard deviation in the measurement is to be 20.%? tablets 14%? tablets 7%? tablets 3%? tablets