The table to the right shows the results of a survey in which 2561 adults from Country? A, 1139 adults from Country? B, and 1089 adults from Country C were asked if human activity contributes to global warming.
Complete parts? (a), (b), and? (c).
Country Percentage
Country A 64%
Country B 85%
Country C 91%
?(a) Construct a 99?% confidence interval for the proportion of adults from Country A who say human activity contributes to global warming. (___, ___) (Round to three decimal places as? needed.)
(B) Construct a 99?% confidence interval for the proportion of adults from Country B who say that human activity contributes to global warming. (___, ___) (Round to three decimal places as? needed.)
(C) Construct a 99?% confidence interval for the proportion of adults from Country C who say that human activity contributes to global warming. (___, ___) (Round to three decimal places as? needed.)