An incumbent city official was running for another term. She was interested in determining whether the...

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An incumbent city official was running for another term. She wasinterested in determining whether the percentage of registeredvoters favoring her candidacy had increased since the lastelection. At that time, 52% of the registered voters favored hercandidacy. A simple random sample of 500 registered voters showedthat 270 favored her. Do the data provide sufficient evidence tofavor the null hypothesis? Perform an appropriate hypothesistest.

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Solution This is the right tailed test The null and alternative hypothesis isH0 p 052Ha p 052n 500x 270 x n 270 500 054P0 0521 P0 1 052 048z See Answer

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