Three circle red on white is one distinctive pattern painted on ceramic vessels of the Anasazi period found at the Wind Mountain archaeological site At one excavation a sample of 170 potsherds indicated that 70 were of the three circle red on white pattern How many ceramic potsherds must be found and identified if we are to be 95 confident that the sample proportion p of such potsherds is within 6 6 of the population proportion o three circle red on white patterns found at this excavation site Round your answer up to the nearest whole number USE SALT