Sampling Distributions for Differences in Sample Proportions

AP Statistics· difficulty 4/5

Conditions for normal approximation of p̂₁ - p̂₂

A
$Each sample has at least 10 successes AND 10 failures, plus independent samples$
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B
$Equal sample sizes$
C
$p₁ = p₂$
D
$Just n large$

Explanation

"10 successes, 10 failures" applied to each sample, plus independence.

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