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MMLU / A researcher plans a study to examine long-term confidence in the U.S. economy…

Problem

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

question

A researcher plans a study to examine long-term confidence in the U.S. economy among the adult population. She obtains a simple random sample of 30 adults as they leave a Wall Street office building one weekday afternoon. All but two of the adults agree to participate in the survey. Which of the following conclusions is correct?

choices

  1. Proper use of chance as evidenced by the simple random sample makes this a well-designed survey.
  2. The high response rate makes this a well-designed survey.
  3. Selection bias makes this a poorly designed survey.
  4. A voluntary response study like this gives too much emphasis to persons with strong opinions.

subject

high_school_statistics

Discussion

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Source and history

task_id
ab2badc8-b1b6-5870-80e1-bf05a7dffac4
task_key
all--test--ab2badc8-b1b6-5870-80e1-bf05a7dffac4
task_revision_id
1
config / split
all / test

Official source

initial import