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Construct a 99% confidence interval for the population proportion of adults who consider air travel to be safe for
(a) The United States.
(b) Great Britain.
(c) France.
(d) Spain.
Use the figure, which shows the results of a survey in which 1044 adults from the United States, 871 adults from Great Britain, 1097 adults from France, and 1003 adults from Spain were asked whether they consider air travel to be safe. |
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