Concept explainers
Fluorodeoxyglucose is a derivative of glucose that contains the radionuclide fluorine-18 (
a. Write a function of the form
of fluorine- 18 at a time t minutes after the initial dose.
b. What is the half-life of
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- 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…arrow_forwardRadon 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/ and the sample standard deviation was 4.9 pCiA. 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 u vs. Ha Test Statistic (Round to three decimals) (Click to select) p-value (Round to three decimals) Conclusion: At a = evidence to conclude that the Click to select) pCiA. KClick to select) since p-value (Click to select) M a. We have KClick to select) V reading (Click to…arrow_forwardThe half-life of Carbon-13 is 5750 years. Samples taken at an excavation site show that a one kilogram sample has 65% Carbon-13 as compared to a normal sample. What is the age of the sample? b.arrow_forward
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