Consider an exchangeable normal vector with parameters ????2, and ?. On the basis of a vector observation some tests about these parameters are found and their properties are discussed. A simulation study for these tests and a few nonparametric tests are presented. Some advantages and disadvantages of these tests are discussed and a few applications are given.

Abstract A subgroup X of a group G is called transitively normal if in any Y such that $$X\le Y$$ X≤Y and subnormal . Thus all subgroups are only normality transitive relation every (i.e. $$\overline{T}$$ xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:...

bloody nipple discharge in infancy has rarely been reported in medical literature. we report a 7 month-old female infant with a one month history of bilateral nipple discharge. endocrinologic and hematological workups were within normal limits. breast ultrasonography showed two non-echogenic cystic areas in each breast. the problem resolved after a period of observation. this is a benign condit...