Question

a report states that 80% of students prefer taking online quizzes over paper quizzes. the survey was conducted among students in the schools computer science club. does the report provide an accurate representation of the overall student population?

no, because the survey only includes students from a specific club, which introduces bias and may not represent the entire student population.

yes, because the survey was conducted among students who are most likely to have experience with online quizzes, ensuring accurate information.

yes, the report is valid because it includes a sufficient sample size that reflects the entire student population.

no, because the survey uses a sample size that is too small to reflect the entire student population.

Explanation:

Analyze the target population and sample

The target population is the overall student population. The sample consists only of students in the school's computer science club.

Evaluate representativeness of the sample

Students in a computer science club are likely more tech-savvy or have different preferences regarding online tools compared to the general student body. This means the sample is not representative of the entire student population.

Identify potential bias

Selecting a sample from a specific club introduces selection bias. This bias prevents the survey results from being generalized to all students.

Evaluate the given options

• Option 1 correctly identifies that sampling from a specific club introduces bias and does not represent the entire population.
• Option 2 incorrectly suggests that targeting experienced students ensures population-wide accuracy.
• Option 3 incorrectly claims the sample is valid and representative.
• Option 4 focuses on sample size rather than the fundamental issue of selection bias.

Answer:

• (A) No, because the survey only includes students from a specific club, which introduces bias and may not represent the entire student population. (Correct answer)
• (B) Yes, because the survey was conducted among students who are most likely to have experience with online quizzes, ensuring accurate information.
• (C) Yes, the report is valid because it includes a sufficient sample size that reflects the entire student population.
• (D) No, because the survey uses a sample size that is too small to reflect the entire student population.