Results 211 to 220 of about 1,609,080 (232)

Simultaneous Quantification of Two Neonicotinoids Using QuEChERS–LC–MS/MS in Moroccan Spearmint (Mentha Spicata.L): Qualimetry of the Method by Uncertainty Estimation Using Generalized Pivotal Quantities Approach and Monte Carlo Simulation

Journal of AOAC International, 2023
Abstract Background Neonicotinoids (NEOs) are used for the phytosanitary treatment of Mentha Spicata.L crops, and this practice requires precise control of these harmful substances at very low concentrations.
Hicham Aaziz, Taoufiq Saffaj, Yassine Hameda Benchekroun, Bouchaib Ihssane   +3 more
openaire   +2 more sources

A generalized pivotal quantity approach to portfolio selection

Journal of Applied Statistics, 2016
ABSTRACTThe major problem of mean–variance portfolio optimization is parameter uncertainty. Many methods have been proposed to tackle this problem, including shrinkage methods, resampling techniques, and imposing constraints on the portfolio weights, etc.
Zhu, Y, Yu, PLH, Mathew, T
openaire   +3 more sources

A Generalized Pivotal Quantity Approach to Analytical Method Validation Based on Total Error

PDA Journal of Pharmaceutical Science and Technology, 2015
The primary purpose of method validation is to demonstrate that the method is fit for its intended use. Traditionally, an analytical method is deemed valid if its performance characteristics such as accuracy and precision are shown to meet prespecified acceptance criteria.
Harry, Yang, Jianchun, Zhang
openaire   +2 more sources

Flood Frequency Analysis: Confidence Interval Estimations With Generalized Extreme Value Distributions Using Special Pivotal Quantities

Stochastic Environmental Research and Risk Assessment
Yiping Guo, Zhengzheng Zhou
exaly   +2 more sources

Point Estimation and Joint Confidence Interval Estimation of Three Parameters in the Generalized Pareto, Generalized Extreme Value, and Generalized Logistic Distributions: A Method Based on Pivotal Quantities

Earth Science Informatics
Zhengzheng Zhou, Shuguang Liu
exaly   +2 more sources

A Generalized Pivotal Quantity Approach to the Parametric Tolerance Interval Test for Dose Content Uniformity Batch Testing

Statistics in Biopharmaceutical Research, 2012
The Food and Drug Administration (FDA) has proposed a parametric tolerance interval test (PTIT) for batch-release testing of inhalation devices. The proposed test examines dose uniformity based on several inhalation units from a batch, with two observations per unit.
Richard A. Lewis, Steven J. Novick
exaly   +2 more sources

Interval Estimates for Probabilities of Non-Perforation Derived From a Generalized Pivotal Quantity

2005
Abstract : A generalized pivotal quantity is developed that yields exact confidence intervals for the cumulative distribution function (CDF) at a specific value when the underlying distribution is assumed to be normal. This problem is similar to the development of a tolerance interval and unsurprisingly, its solution involves the non-central "t ...
openaire   +1 more source

Interval Estimation of Generalized Inverted Exponential Distribution Under Records Data: A Comparison Perspective

Mathematics, 2022
Yogesh Tripathi, Liang Wang, Yuhlong Lio
exaly  

Frequency Analysis in Flood Management: Confidence Interval Estimations Based on Pivotal Quantities in Generalized Extreme Value Distribution

41st IAHR World Congress
Weiqiang Zheng, Shuguang Liu, Zhengzheng Zhou, Guihui Zhong   +3 more
openaire   +1 more source

A Novel Unified Computational Approach to Constructing Shortest-Length or Equal Tails Confidence Intervals in Terms of Pivotal Quantities and Quantile Functions

Automatic Control and Computer Sciences, 2021
N A Nechval, G Berzins
exaly