AP Statisticsmediummcq1 pt
A one-sample z test for a proportion uses which standard deviation under H0?
A.the square root of p0(1 - p0) over n
B.the sample's p-hat
C.σ over root n
D.the margin of error
Explanation
Core Concept
H0's p0 sets the standard error.
Correct Answer
Athe square root of p0(1 - p0) over n
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