Park, Jeong-Soo; Yoon Kim, Tae - In: Statistics & Probability Letters 77 (2007) 13, pp. 1459-1466
In this paper, the exact form of Fisher information matrix for a four-parameter kappa distribution (K4D) is determined. The K4D is so general that includes a variety of distributions as special cases. The necessary condition for the existence of Fisher information matrix is for k[not equal to]0,...