Financial analyst Larry Potts needs a sample of 100 securities listed on the New York Stock Exchange.The current issue of the Wall Street Journal has an alphabetical list of the 2,531 securities traded on the previous business day.Larry randomly selects the 7th security as a starting point, and selects every 25th security thereafter (7, 32, 57, etc.).His sample is a ____________.
A)quota sample
B)simple random sample
C)stratified sample
D)systematic sample
E)cluster sample

Question

Quizplus · Accepted Answer

Larry's method of selecting every 25th security starting from the 7th security is an example of systematic sampling. This approach involves selecting elements from a larger population at a regular interval after a random start.

Financial Analyst Larry Potts Needs a Sample of 100 Securities