A study is conducted at a university to investigate students\' satisfaction with

Question

A study is conducted at a university to investigate students' satisfaction with their courses. Which sampling design would be best for eliminating or reducing bias in order to obtain results that are most representative of the population of interest?

a. Divide students by year in college and then select a random sample of students from each stratum to complete a survey about their satifaction with their courses.

b. obtain a simple random sample from all students taking math courese, and have them complete a survey about their satisfaction with their courses.

c. Cluster sample all students by major, randomly select one cluster, and have all students from the selected cluster complete a survey about their satisfaction wtih the courses.

d. Find students that will volunteer to complete a survey about their satisfaction with their courses.

Explanation / Answer

Cluster sample all students by major, randomly select one cluster, and have all students from the selected cluster complete a survey about their satisfaction wtih the courses.

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