A researcher is studying the population of all college students at a local university. An alphabetical listing of all college students is obtained. Of the first 25 students in this listing, one will be selected at random. Then starting with that selected student, every 25th student in the listing thereafter will be selected.
A survey will be sent to all
selected students. The students
were selected using a sampling
technique called _____.
1.systematic sampling
2.cluster sampling
3.stratified sampling
4.simple random sampling
Question 2
To examine the study habits of college students at a local community college a sample of students was needed to complete a questionnaire. Which of the following will most likely result in an unbiased sample?
1.Using the student directory of on-campus housing as the sampling frame and randomly selecting 20 students from the list
2.Posting a sign for student volunteers in the campus center
3.Asking the first 20 students who enter the library Saturday morning
4.Using the list of enrolled students, obtained from the registrar, as the sampling frame and randomly selecting 20 students from the list
The mark-recapture technique is often used to estimate population size.
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