A researcher is interested in the cholesterol levels of adults in the city in which she lives. A…
A researcher is interested in the cholesterol levels of adults in the city in which she lives. A cholesterol screening program is set up in the downtown area during the lunch hour. Individuals can walk in and have their cholesterol determined for free. The service is used by 173 people, and their average cholesterol is 217.8. The sample obtained is an example of a. a simple random sample because the experimenter did not know beforehand which individuals would come to the screening. b. a stratified sample of high- and low-cholesterol individuals. c. a sample probably containing bias and undercoverage.
Mar 30 2022 01:30 PM
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