1. Suppose a certain instructor is interested in determining the average final grade for all students taking STA 205 in any given semester. Suppose she obtains the academic records for 100 former STA 205 students. For this scenario, determine both the population and the sample of interest. Be sure to write your answers in the context of the problem.
It is an interesting question. Years ago, I developed an algorithm to predict chemisty final grades bases on the first three weeks work, as based on prior students. I put the predictions away until after the year, then went back and compared. The corelations were significant, 92 percent of the students were within +-2 points of the prediction.
Actually, your question sounds much like a test question. We don't do those, but will critique your thinking on it.
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[Your Name]
[Your Address]
[Your Phone Number]
[Your Email Address]
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Education:
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- Bulleted list of job responsibilities and achievements
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Certifications:
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In the given scenario, the population of interest refers to the entire group of individuals the instructor wants to make inferences about. In this case, the population of interest is all students who have taken STA 205 in any given semester.
The sample of interest, on the other hand, refers to a subset of the population from which data is collected and analyzed. In this scenario, the sample of interest is the academic records of 100 former STA 205 students.
To determine the average final grade for all students taking STA 205 in any given semester, the instructor has collected data from a sample of 100 former students. By analyzing this sample, the instructor can make inferences about the average final grade for the entire population of students who have taken STA 205.