3. Radon comes from the natural (radioactive) breakdown of uranium in soil, rock and water and gets into the air you breathe. Many people buy radon detectors for their homes. How accurate are these detectors? Researchers selected a random sample of 11 radon detectors and placed them in a chamber with 105 picocuries per liter of radon. The detector readings were: 91.9 97.8 111.4 122.3 105.4 95.0 103.8 99.6 119.3 104.8 101.7 Is there evidence that mean reading from radon detectors are different from the actual amount of radon?

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