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color. Brief Case Has Gold Lost its Luster? In 2011, when the
Gallup organization polled investors, 34% rated gold the best
long-term investment. However, in April of 2013 Gallup surveyed a
random sample of U.S. adults. Respondents were asked to select the
best long-term investment from a list of possibilities. Only 241 of
the 1005 respondents chose gold as the best long-term
investment.
A. With 95% confidence, compute the margin...