New European Pharmacopoeia chapter aims to resolve problems with applying the harmonized UDU test to large sample sizes. Recent development in analytical technology has made possible the fast ...

PROC SURVEYSELECT provides a variety of methods for selecting probability-based random samples. With probability sampling, each unit in the survey population has a known, positive probablity of ...

Consider the example in the section "Stratified Sampling". The study population is a junior high school with a total of 4,000 students in grades 7, 8, and 9. Researchers want to know how much these ...

The Modular Automated Sampling Technology platform takes online samples from bioreactors and transfers them directly to analytical devices. Reliable systems to transfer bioprocess samples directly ...