A saddlepoint approximation to the distribution of the sum of independent non-identically uniform random variables

Hidetoshi Murakami

Statistica Neerlandica, 2014, vol. 68, issue 4, 267-275

Abstract: type="main" xml:id="stan12032-abs-0001"> Calculating the probability of the corresponding significance point is important for finite sample sizes. However, it is difficult to evaluate this probability when the sample sizes are moderate to large. Under these circumstances, consideration of a more accurate approximation for the distribution function is extremely important. Herein, we performed a saddlepoint approximation in the upper tails for the distribution of the sum of independent non-identically uniform random variables under finite sample sizes. Saddlepoint approximation results were compared with those for a normal approximation. Additionally, the order of errors of the saddlepoint approximation was derived. © 2014 The Authors. Statistica Neerlandica © 2014 VVS.

Date: 2014
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