In a survey funded by the University of Washington School of Medicine 507 of 1 300 adult Seattle residents said they did not believe they could come down with a sexually transmitted infection STI Construct a 99 confidence interval estimating the proportion of adult Seattle residents that do not believe they can contract an STI Round the answers to three decimal places Preliminary a Is it safe to assume that n 5 of all residents in Seattle Yes O No b Verify np 1 P 10 Round your answer to one decimal place np 1 P