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Determine if the question is best answered by using an observational study.(3 points) Yes, an observational study is best. No, an observational study is not best. Which species of shark tends to swim at the greatest average depth? Does daily yoga practice lower stress levels in adults aged 30–45? Do high school students at Lighthouse Connections Academy enjoy listening to music while working on schoolwork?

1 answer

To determine whether an observational study is best for each question, let's analyze them one by one:

  1. Which species of shark tends to swim at the greatest average depth?

    • Observational study: Yes. This question can be answered by observing and measuring the swimming depths of different shark species in their natural habitats.

  2. Does daily yoga practice lower stress levels in adults aged 30–45?

    • Observational study: No. This question is best answered by an experimental study where one group practices yoga daily and another group does not, allowing for a comparison of stress levels.

  3. Do high school students at Lighthouse Connections Academy enjoy listening to music while working on schoolwork?

    • Observational study: Yes. This can be determined through surveys or observations of students' preferences without manipulating any variables.

In summary:

  1. Yes (observational study)
  2. No (observational study is not best)
  3. Yes (observational study)