Mathematics, 18.11.2019 21:31 vkrizh
The installation of a radon abatement device is recommended in any home where the mean radon concentration is 4.0 picocuries per liter (pci/l) or more, because it is thought that long-term exposure to sufficiently high doses of radon can increase the risk of cancer. seventy-five measurements are made in a particular home. the mean concentration was 3.73 pci/l and the standard deviation was 1.93 pci/l. a. the home inspector who performed the test says that since the mean measurement is less than 4.0, radon abatement is not necessary. explain why this reasoning is incorrect. b. because of health concerns, radon abatement is recommended whenever it is plausible that the mean radon concentration may be 4.0 pci/l or more. state the appropriate null and alternate hypotheses for determining whether radon abatement is appropriate. c. compute the p-value. would you recommend radon abatement? explain.
Answers: 2
Mathematics, 21.06.2019 21:00
Eliza wants to make $10,000 from her investments. she finds an investment account that earns 4.5% interest. she decides to deposit $2,500 into an account. how much money will be in her account after 14 years?
Answers: 1
Mathematics, 22.06.2019 01:30
Acontainer holds 0.7 liters of oil and vinegar. 3/4 of the mixture is vinegar. how many liters of oil are in the container? express your answer as both a fraction and a decimal.
Answers: 1
Mathematics, 22.06.2019 01:30
Awoman who is 64 inches with a shoulder width of 16 inches. write an equation relating the height h to the width w. find the height of a woman who has ashoulder width of 18.5 inches
Answers: 3
The installation of a radon abatement device is recommended in any home where the mean radon concent...
Mathematics, 15.07.2019 12:30
Health, 15.07.2019 12:30
Mathematics, 15.07.2019 12:30
Chemistry, 15.07.2019 12:30
History, 15.07.2019 12:30
Mathematics, 15.07.2019 12:30
Social Studies, 15.07.2019 12:30
English, 15.07.2019 12:30
Mathematics, 15.07.2019 12:30
Social Studies, 15.07.2019 12:30