Arecent gallup poll asked, "what is your favorite summer olympics event? " of the people asked, 27% said "swimming." here is what gallup says about the accuracy of this poll: the results are based on telephone interviews with a sample of 1007 national adults, aged 18 years and older, conducted july 25-27, 2008. for results based on the total sample of national adults, one can say with 95% confidence that the maximum error attributable to sampling and other random effects is plus or minus 3 percentage points. in addition to sampling error, question wording and practical difficulties in conducting surveys can introduce error or bias into the findings of public opinion polls. which of these is a correct confidence statement based on this gallup poll, assuming there is no bias? a) there is a 95% chance that the opinions of the 1007 people interviewed fairly represent the opinions of all adults. b) we are 95% confident that between 24% and 30% of the 1007 people interviewed would say swimming is their favorite summer olympic event. c) we are 95% confident that between 24% and 30% of all adults would say swimming is their favorite summer olympic event. d) in many samples, 95% will find that 27% of the people interviewed would say swimming is their favorite summer olympic event