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A Poll Was Taken This Year Asking College Students If

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A poll was taken this year asking college students if they considered themselves overweight. A similar poll was taken five years ago. Results are summarized below. Has the proportion increased significantly? Let α = .05. A poll was taken this year asking college students if they considered themselves overweight. A similar poll was taken five years ago. Results are summarized below. Has the proportion increased significantly? Let α = .05.

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H0: p1 - p2 ≤ 0
Ha: p1 - p2 > 0
z = ...

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