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MMLU / A high school sent a survey to a randomly selected sample of 75 of last year's…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A high school sent a survey to a randomly selected sample of 75 of last year's graduating class. 27 of those selected did not return the survey. The best plan of action would be to:

choices

  1. Use the surveys that were returned and change the sample size to 48 for the analysis.
  2. Use the surveys that were returned and leave the sample size at 75 for the analysis.
  3. Randomly select 27 additional class members and send the survey to them.
  4. Follow up with those that did not return the survey to encourage them to respond.

subject

high_school_statistics

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Source and history

Official source

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