SenGupta, A.; Rao Jammalamadaka, S. - In: Statistics & Probability Letters 12 (1991) 6, pp. 537-544
Hayakawa (1990) has very recently studied the behavior of the power for several large sample tests for the mean direction vector of the Langevin distribution. These tests are not known to possess any non-trivial optimal property. Here we derive some multiparameter locally optimal tests, e.g.,...