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An economist claims that 30% of Americans are optimistic about the U.S. economy. A reporter conducts a hypothesis test at the =0.10 significance level to
An economist claims that 30% of Americans are optimistic about the U.S. economy. A reporter conducts a hypothesis test at the =0.10 significance level to test this claim. In a survey of 600 Americans, the reporter finds that 174 are optimistic about the economy. Find the value of the test statistic for this hypothesis test.
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