You have been asked to help draw a sample of students with the object being to evaluate a newly proposed grading system.Which statement would you want to guide your sample selection?
A) With a population of 25,000 students, a sample of 25 is okay.
B) Since seniors are more experienced, only include seniors in the sample.
C) Randomly select a sample of 500 students from all students affected by the new grading system.
D) A random sample of 500 students from among those taking a sociology course will be used.
Correct Answer:
Verified
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