Let p denote the proportion of all individuals who are allergic to a particular medication. An investigator

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Let p denote the proportion of all individuals who are allergic to a particular medication. An investigator tests individual after individual to obtain a group of r individuals who have the allergy. Let Xi = 1 if the ith individual tested has the allergy and Xi = 0 otherwise (i = 1, 2, 3,…). Recall that in this situation, Y = the number of individuals tested to obtain the desired group has a negative binomial distribution. Use the definition of sufficiency to show that Y is a sufficient statistic for p.

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Modern Mathematical Statistics With Applications

ISBN: 9783030551551

3rd Edition

Authors: Jay L. Devore, Kenneth N. Berk, Matthew A. Carlton

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