Producers of infant formula employ comprehensive food safety systems, including product testing to ensure those systems are working. A new study from the University of Illinois Urbana-Champaign finds ...

Comparing the power of three different sampling patterns with the low-prevalence, high-level profile. The probability of detection is shown at 2.5th–97.5th percentile. The line with dots shows the ...

Sankhyā: The Indian Journal of Statistics, Series B (1960-2002), Vol. 61, No. 1, Sample Surveys (Apr., 1999), pp. 187-201 (15 pages) The balanced half sample (BHS) method is a popular method for ...

Stratified sampling is used to select a sample that is representative of different groups. If the groups are of different sizes, the number of items selected from each group will be proportional to ...