(Answered) The table to the right shows the results of a survey in

Statistics

The table to the right shows the results of a survey in which 2585 adults from Country A, 1116 adults from Country B, and 1064 adults from Country C were asked if human activity contributes to global warming. Complete parts (a), (b), and (c).

Country A: 68%

Country B: 86%

Country C: 93%

(a) Construct a 90% confidence interval for the proportion of adults from Country A who say human activity contributes to global warming ( , )

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