e situations described, state whether g procedure is simple random sampling, mpl
ID: 3135117 • Letter: E
Question
e situations described, state whether g procedure is simple random sampling, mpling, system 2.18 For each of th a the samplin - stratified random sampling, cluster sampling, s atic sampling, or convenience sampling a. All first-year students at a university are enrolled in one of 30 sections of a seminar course. To select a sample of freshmen at this university, a research- er selects four sections of the seminar course at random from the 30 sections and all students in the four selected sections are included in th sample. b. To obtain a sample of students, faculty, and staff at a university, a researcher randomly selects 50 faculty members from a list of faculty, 100 stu- dents from a list of students, and 30 staff me from a list of staff mbers c. A university researcher obtains a sample of students at his university by using the 85 students enrolled in his Psychology 101 class. d. To obtain a sample of the seniors at a particular high school, a researcher writes the name of each senior on a slip of paper, places the slips in a box ercises answered in back . Data set available online v Video Solution avExplanation / Answer
a. Cluster sampling because all students are divided into clusters (sections) and 4 clusters are selected and included in the sample.
b. Stratified sampling because all individuals are first divided into homogeneous groups strata (faculty, students and staff) and then randomly selected some individuals from all strata.
c. Convenience sampling because sample was selected from his/her own class.
d. Simple random sampling because each individual has got same chance of being selected.
e. Systematic sampling because every 24th person is selected.
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