The table to the right shows the results of a survey in which 2557 adults from Country A,
The table to the right shows the results of a survey in which 2557 adults from Country A,1133 adults from
Country B, and 1075 adults from Country C were asked if human activity contributes to global warming. Complete parts(a), (b), and(c)
| Adults who say that human activity contributes to global warming | |
| Country A | 66% |
| Country B | 86% |
| Country C | 94% |
Construct a 95% confidence interval for the proportion of adults from Country A who say human activity contributes to global warming.
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