Mary Hall is a editor for Investopedia's Advisor Insights, in addition to being the editor of several books and doctoral papers. Mary received her bachelor's in English from Kent State University with ...

Producers of infant formula employ comprehensive food safety systems, including product testing to ensure those systems are working. A new study finds that some testing methods are more powerful at ...

The Canadian Journal of Statistics / La Revue Canadienne de Statistique, Vol. 21, No. 4 (Dec., 1993), pp. 347-357 (11 pages) An Edgeworth expansion for a linear combination of stratum means in ...

We develop statistical inference methods for fitting logistic regression models to data arising from the two-phase stratified case-control sampling design, where a subset of covariates are available ...