Which of the Following Regarding Probability Samples Is FALSE

Multiple Choice

Which of the following regarding probability samples is FALSE?

A) Evaluation of the precision of a sample result is important to most researchers and therefore they seek to use probability samples whenever possible.
B) In general,probability sampling requires personnel who are more skilled and experienced than nonprobability sampling.
C) Probability samples will usually cost substantially more than a nonprobability sample of the same size on a per observation basis.
D) One real advantage that probability samples have over nonprobability samples is their greater economic efficiency.
E) Elements of the sample are selected objectively.