Short Answer
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 = 0.05.
Sample Size Number Considered
Themselves Overweight
Present Sample 300 150
Previous sample 275 121
Correct Answer:

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H0: P1 - P2 ≤ 0
Ha: ...View Answer
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Correct Answer:
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