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 ...

This example illustrates the use of regression analysis in a simple random cluster sampling design. The data are from S rndal, Swenson, and Wretman (1992, p. 652). A total of 284 Swedish ...

The following PROC SURVEYSELECT statements select a probability sample of customers from the Customers data set using simple random sampling. title1 'Customer Satisfaction Survey'; proc surveyselect ...

A general rule is proved for estimating the variance in multistage designs when the primary sampling units (psu's) are selected without replacement with unequal probabilities. The rule is used for ...

Situations occasionally arise in epidemiological studies wherein a sub-sample of the entire study group is selected in an other than simple random manner and one or more specified measurements are ...