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1.An Ipsos poll found that 452 out of 1005 people believe that UFOs exist and have visited the Earth. a.Find the 99% confidence interval of

1.An Ipsos poll found that 452 out of 1005 people believe that UFOs exist and have visited the Earth.

a.Find the 99% confidence interval of this distribution.

b.What minimum sample size would be required in order to assure a margin of error no more than 4%?

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