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- 5. A bag contains 20 identical red balls, 20 identical blue balls, 20 identical green balls, and one white ball. You reach in and grab 15 balls. How many different outcomes are possible?4 When the prevalence of a disease in the population is very low, such as HIV infection or certain cancers, there is controversy about the benefits of screening everyone for the disease. In this problem, you will see why this is the case. The table below shows what is likely to happen if all roughly 300,000,000 Americans each were given an inexpensive enzyme immunoassay screening test for HIV infection. Test Positive 1,339,370 4,479,849 5,819,219 Total Have HIV 1,343,400 Do Not Have HIV 294,176,751 298,656,600 Total 294,180,781 300,000,000 Sources: www.cdc.gov, R. Chou et al. (July 2005). "Screening for HIV: A Review of the Evidence for the U.S. Preventive Services Task Force," Annals of Internal Medicine, Vol. 143, July 2005, pp. 55-73, www.annals.org/content/143/1/55.full Test Negative 4,030 a. How many false positives were there? Explain the consequence of a false positive for the person tested. b. How many false negatives were there? Explain the consequence of a false negative for…What is Box and Whiskers
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- 2) The rabies vaccine for dogs can save your dog's life. If your dog bites another animal or is on the receiving end of a bite, the vaccine can protect them from a dangerous and potentially fatal illness. Furthermore, in most places, the rabies vaccine for dogs is legally required. The NYC Department of Health wants to know if LESS than 95% of the dogs in the city have been vaccinated with their rabies vaccine. 158,045 of the 165,000 dogs examined had their rabies shots. Risk no more than 5% Type I error. What is the P^? (round to nearest thousandth)3) The rabies vaccine for dogs can save your dog's life. If your dog bites another animal or is on the receiving end of a bite, the vaccine can protect them from a dangerous and potentially fatal illness. Furthermore, in most places, the rabies vaccine for dogs is legally required. The NYC Department of Health wants to know if LESS than 95% of the dogs in the city have been vaccinated with their rabies vaccine. 158,045 of the 165,000 dogs examined had their rabies shots. Risk no more than 5% Type I error. What kind of test will you need to perform? A right, one-tailed z-test A left, one-tailed z-test A two-tailed z- test6) The rabies vaccine for dogs can save your dog's life. If your dog bites another animal or is on the receiving end of a bite, the vaccine can protect them from a dangerous and potentially fatal illness. Furthermore, in most places, the rabies vaccine for dogs is legally required. The NYC Department of Health wants to know if LESS than 95% of the dogs in the city have been vaccinated with their rabies vaccine. 158,045 of the 165,000 dogs examined had their rabies shots. Risk no more than 5% Type I error. What is the Z obt? (round to the nearest whole number)
