Problem 4 of 7
Identify whether study researchers record existing smoking habits and health is a sample survey.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
recognize data collected from a sample without treatment assignment.
Hidden until you reveal it.
Recognize data collected from a sample without treatment assignment.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Check whether individuals are sampled and asked/measured.
2. Check whether treatment is imposed.
3. Classify as sample survey when no treatment is assigned.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Calling every data collection an experiment.