Find best point estimator for difference-binomial proportion

Reference no: EM13139544

Independent samples of n1 = 400 and n2= 400 observations were selected from binomial populations 1 and 2, and x1 = 100 and x2 = 127 successes were observed. What is the best point estimator for the difference ( p1-p2) in the two binomial proportions?

1. -0.0675

2. -0.1250

3. 0.0325

4. 0.0755

Reference no: EM13139544

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