Stopping Time of a Rank-Order Sequential Probability Ratio Test Based on Lehmann Alternatives II
Sethuraman, J.
Ann. Math. Statist., Tome 41 (1970) no. 6, p. 1322-1333 / Harvested from Project Euclid
We are motivated by Stein's proof (Stein (1946), Wald (1947), pages 157-158) of the termination of a sequential probability ratio test in the case of independent and identically distributed random variables. Extending his ideas to take certain "dependencies" into account we examine the rank-order sequential probability ratio test based on a Lehmann alternative studied in a paper with the above title by I. R. Savage and the author (1966) (referred to as SS I in the rest of this paper). We prove that this test terminates with probability one and that the stopping time has a finite moment generating function under a very mild condition on the bivariate random variables which resembles the Stein-condition, namely that a certain random variable $V(X_1, Y_1)$, defined in (32), is not identically equal to 0. Finally the asymptotic normality of the logarithm of the likelihood ratio of the rank order is established using the well-known Chernoff-Savage Theorem.
Publié le : 1970-08-14
Classification: 
@article{1177696906,
     author = {Sethuraman, J.},
     title = {Stopping Time of a Rank-Order Sequential Probability Ratio Test Based on Lehmann Alternatives II},
     journal = {Ann. Math. Statist.},
     volume = {41},
     number = {6},
     year = {1970},
     pages = { 1322-1333},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1177696906}
}
Sethuraman, J. Stopping Time of a Rank-Order Sequential Probability Ratio Test Based on Lehmann Alternatives II. Ann. Math. Statist., Tome 41 (1970) no. 6, pp.  1322-1333. http://gdmltest.u-ga.fr/item/1177696906/