If we take a random sample of n = 570 teachers and find x = 143 have gotten the flu shot, find the sample's margin of er

[answerhappygod]

If we take a random sample of n = 570 teachers and find x = 143have gotten the flu shot, find the sample's margin of error at a90% confidence levelGive your answer to three decimals
In a recent poll, 350 people were asked if they liked dogs, and42% said they did. Find the margin of error of this poll, at the90% confidence level.Give your answer to three decimals
A sample of size 30 was taken from a very large population inorder to estimate a proportion, pp. The sample was found tohave a proportion of ˆpp^ = 0.73333333333333.How many successes were found in this sample(hint: n⋅ˆpn⋅p^ )?
How many failures were found in this sample?
A political candidate has asked you to conduct a poll todetermine what percentage of people support her.If the candidate only wants a 1% margin of error at a 90%confidence level, what is the sample size that is needed?Give your answer as a whole number.
A school board wants to conduct a survey to determine thepercentage of parents that have been vaccinated in theirdistrict.The school board wants a 5% margin of error at a 99% confidencelevel, what size of sample is needed?Give your answer in whole people.