At US Data Corporation's web site,they advertised that "Because of our commitment to quality and our vast amount of industry knowledge and experience,we have grown to be one of America's leading providers of mailing lists,marketing data,sales leads and research data.We maintain databases of information on consumers and businesses nationwide that set industry standards for mission critical currency,reliability and accuracy." Trying to reach 500 potential donors for their annual phone donation campaign,a local fire department purchased a list of donors from the company.This list is an example of a
A)stratified sample
B)systematic sample
C)judgment sample
D)frame

Question

Quizplus · Accepted Answer

The list of donors purchased by the local fire department from US Data Corporation is an example of a frame, which is a list of all the individuals or elements in a target population that can be sampled from. In this case, the target population is potential donors for the annual phone donation campaign, and the frame (list of donors) is used to select a sample of individuals to contact for donations. A stratified sample involves dividing the target population into subgroups and selecting a sample from each subgroup, a systematic sample involves selecting every nth individual from a list, and a judgment sample involves selecting individuals based on the researcher's subjective judgment. None of these sampling methods are mentioned in the scenario, so D is the best answer.

At US Data Corporation's Web Site,they Advertised That "Because of Our