Radon is a colorless, odorless gas that is naturally released by rocks and soils and may concentrate in tightly closed houses. Since radon is slightly radioactive, there is some concern that it may be...

Extracted text: Radon is a colorless, odorless gas that is naturally released by rocks and soils and may concentrate in tightly closed houses. Since radon is slightly radioactive, there is some concern that it may be a health hazard. Radon detectors are sold to homeowners worried about this risk, but the detectors may be inaccurate. University researchers placed 30 radon detectors in a chamber where they were exposed to 105 picocuries per liter (pCi/l) of radon over 3 days. The sample average reading from the 30 radon detectors was 102.87 pCi/l and the sample standard deviation was 4.9 pCi/l. Are the researchers able to conclude at the 5% significance level that the average reading differs from the true value of 105? To test: Ho: (Click to select) (Click to select) : vs. Ha: ( (Click to select) : (Click to select) Test Statistic (Round to three decimals): (Click to select) p-value (Round to three decimals): Conclusion: At a =[ (Click to select) : since p-value (Click to select) a. We have (Click to select) + evidence to conclude that the (Click to select) +) reading ( (Click to select) : pCi/l.