AP Statisticsmediummcq1 pt
A 95 percent interval for p from a sample with p-hat = 0.5 and n = 400 has margin of error about
A.0.049
B.0.025
C.0.098
D.0.5
Explanation
Core Concept
1.96 times 0.025 equals 0.049.
Correct Answer
A0.049
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