Which is not a quality of a convenience sample?
A) unrestricted samples
B) non-probability samples
C) the most difficult samples to arrange
D) the most unreliable samples
C
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A waiting-line system that meets the assumptions of M/M/S has ? = 5, ? = 4, and M = 2. For these values, Po is approximately 0.23077, and Ls is approximately 2.05128. What is the average number of units waiting in the queue?
A) approximately 0.1603 B) approximately 0.4103 C) approximately 0.8013 D) approximately 1.0417 E) Cannot be calculated because ? is larger than ?.
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A company working toward ISO 14000 certification would be most concerned with oversight from the ________
A) U.S. Food and Drug Administration (FDA) B) World Trade Organization (WTO) C) Sarbanes-Oxley Act D) U.S. Environmental Protection Agency (EPA)
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