Problem 103 of 7
Compare sampling plans simple random sample of 300 adults from a national database and randomly select 1000 email addresses from a company's customer list for a survey for inference quality.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
evaluate randomness, coverage, and sample size.
Hidden until you reveal it.
Evaluate randomness, coverage, and sample size.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Check selection method for each plan.
2. Compare coverage of target population.
3. Consider sample size after bias concerns.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Choosing larger sample automatically when design is biased.