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Identify the null hypothesis, alternative hypothesis, critical value z, test statistic, hypothesis conclusion, and contextual conclusion that...

Identify the null hypothesis, alternative hypothesis, critical value z, test statistic, hypothesis conclusion, and contextual conclusion that addresses the original claim.

A poll of 1068 adult Americans reveals that 48% of the voters surveyed prefer the Democratic candidate for the presidency. At the 0.05 level of significance, test the claim that at least half of all voters prefer the Democrat

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