This article addresses the problem of hypothesis testing about the powers of the ratio of
variances of two normal populations with a common mean. Different test procedures are …

In the present study, we consider the problem of estimating a function of scale parameter\ln
σ ln σ under an arbitrary location invariant bowl-shaped loss function, when location …

In this paper, several shrunken estimators for the ratio of scale parameters of the exponential
two-sample problem using two types of shrinkage functions are proposed. The first …

We give new classes of Strawderman-type improved estimators for the scale parameter σ2
and the hazard rate parameter 1/σ1 of the exponential distributions E (μ2, σ2) and E (μ1, σ1) …

In this work improved point and interval estimation of the smallest scale parameter of
independent gamma distributions with known shape parameters are studied in an integrated …

Estimation of the scale parameter of the scale mixture of a location–scale family under the
scale-invariant loss function is considered. The technique of Strawderman (Ann Stat 2 (1) …

In estimation of ratio of variances in two normal distributions with unknown means, it has
been shown in the literature that simple and crude ratio estimators based on two sample …

Suppose that there is a typical (scale equivariant) improved estimator of the variance, σ 2, of
a univariate normal distribution with unknown mean at our disposal. Using this estimator, in …