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Mathematics, 26.10.2019 03:43 ZachLaVine2016
Of n1 randomly selected male smokers, x1 smoked filter cigarettes, whereas of n2 randomly selected female smokers, x2 smoked filter cigarettes. let p1 and p2 denote the probabilities that a randomly selected male and female, respectively, smoke filter cigarettes. (a) show that (x1/n1) − (x2/n2) is an unbiased estimator for p1 − p2. [hint: e(xi)
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