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In a random sample of 290 eight-graders in Fiction County, it was found that 31 were hearing imparied. At the =0.05 significance level, we want

In a random sample of 290 eight-graders in Fiction County, it was found that 31 were hearing imparied. At the =0.05 significance level, we want to test the claim that the percentage of eighth-graders in Fiction County who are hearing impaired is greater than the statewide percentage of 7%. Find the value of the test statistic for this hypothesis test.

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