The table to the right shows the result of a survey in which 2558 adults from country A, 1124 adults from country B, and 1070 adults from country C were asked if human activivty contributes to global warming.
Construct a 95% confidence interval for the proportion of adults from country A who says that human activity ciontributes to global warming.
Adults who say that human activity contributes to global warming
Country A 64%
Country b 89%
Country c 91%