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A researcher wants to collect data about the study habits of sophomores at Harmo

ID: 3231858 • Letter: A

Question

A researcher wants to collect data about the study habits of sophomores at Harmond University. From the sophomore class of 2, 300 students, she wants to collect a sample of 70 students. Which of the following sampling methods will yield the most representative sample? Assigning each sophomore a number and then randomly generating 70 numbers from that list Randomly selecting 70 sophomores entering the university's main library on a randomly selected evening Selecting the 70 sophomores whose grade point averages (GPA) fall closest to the mean GPA of the sophomore class Randomly selecting 70 sophomores who are members of college fraternities

Explanation / Answer

Q.9 sophomore students total = 2300

sample size from that population = 70 students.

Here are the option b .

(b) from university library in evening : that eliminates possibilities of morning goer library students and only select students who go to library.So, not at all good random sampling.

(c) GPA falls closes to mean GPA. This is also not good random sampling as it will leave students who are better or bad in studies. so only average studious students are randomly sampled here.

(d) College Fraternities. Here sampling is limited to college fraternities only that will leave out students who are out f fraternities. so not at all a good random sampling.

(a) randomly generating 70 students by assigning each student a number that is a perfect random sampling which are not limited to some certain characteristics.

so option a is correct.

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