X 2 TEST

Contribution to the Theory of the X 2 Test

In the present paper several alternative definitions of the familiar symbol x2 are discussed. The body of the paper is divided into two parts. In the first part (sec. 3) a class of estimates is defined, termed best asymptotically normal estimates (BAN estimates, for short), all having the same asymptotic properties as the maximum likelihood estimates but varying in the ease with which they can ...

Alternatives to Fisher's "Exact Test" for Analyzing 2 X 2 Tables with Small Cell Sizes

بررسی فازی ترکیبات Mo + 2(1 - x) Si + 2xAl

X-ray powder diffraction data for Mo2.85Al1.91Si4.81 are presented here. The new Mo2.85Al1.91Si4.81 compound was successfully prepared, using the self-propagating high-temperature synthesis (SHS) technique. The starting atomic mixture of reactant powders was Mo + 2(1 - x)Si + 2xAl with 0.2 ≤ x ≤ 0.5. The final powder compound obtained by the SHS technique was determined to be in x = 0.2; Mo(Si,...

A Note on Twists of (y^2=x^3+1)

‎‎In the category of Mordell curves (E_D:y^2=x^3+D) with nontrivial torsion groups we find curves of the generic rank two as quadratic twists of (E_1), ‎and of the generic rank at least two and at least three as cubic twists of (E_1). ‎Previous work‎, ‎in the category of Mordell curves with trivial torsion groups‎, ‎has found infinitely many elliptic curves with ...

HIV Rapid Diagnostic Test Inventories in Zambézia Province, Mozambique: A Tale of 2 Test Kits

Background The first pillar of the UNAIDS 90-90-90 goal seeks to accurately identify persons living with HIV (PLHIV), a process that is predicated on facilities having the necessary HIV tests available to perform the task. In many rural settings, the identification of PLHIV is accomplished through a two-step process involving the sequential use of 2 separate rapid diagnostic tests (RDTs)....