Suppose a steroid test is 81% sensitive and 85% specific. That is, the tes will produce 81% true positive results for steroid users and 85% true negative results for non-steroid users. Suppose that 2.8% of people are steroid users. If a randomly selected individual tests negative, what is the probability he or she is a steroid user? YOUR ANSWER SHOULD BE BETWEEN O AND 100 AND ROUNDED TO 4 DECIMAL PLACES. (e.g. 59.5321 would be 59.5321%)

Suppose a steroid test is 81% sensitive and 85% specific. That is, the tes will produce 81% true positive results for steroid users and 85% true negative results for non-steroid users. Suppose that 2.8% of people are steroid users. If a randomly selected individual tests negative, what is the probability he or she is a steroid user? YOUR ANSWER SHOULD BE BETWEEN O AND 100 AND ROUNDED TO 4 DECIMAL PLACES. (e.g. 59.5321 would be 59.5321%)

Microeconomic Theory

12th Edition

ISBN:9781337517942

Author:NICHOLSON

Publisher:NICHOLSON

Chapter2: Mathematics For Microeconomics

Section: Chapter Questions

Problem 2.15P

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The accompanying table shows the results from a test for a certain disease. Find the probability of selecting a subject with a negative test result, given that the subject has the disease. What would be an unfavorable consequence of this error? The probability is (Round to three decimal places as needed.) What would be an unfavorable consequence of this error? O A. The test would be shown to be not effective. OB. The test would be shown to be not reliable. O C. The subject would experience needless stress and additional testing. O D. The subject would not receive treatment and could spread the disease. The individual actually had the disease Yes Positive 343 Negative 10 No 9 1148
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JUST ANSWER SUBPART 1 There are two individuals, Individual A and Individual B. Individual A has an income (Y) of 500 million Rupiah per year. If Individual A is sick, he will lose 25% of his income. Meanwhile, Individual B has an income (Y) of 100 million Rupiah per year, and if Individual B is sick, he will lose 75% of his income. The probability of Individual A and Individual B being sick is the same, which is 10%. If the satisfaction level of Individual A and Individual B is determined by their income level, based on the following function U(Y)=ln Y, would Individual A and Individual B prefer not to have health insurance? Explain Faced with fair actuarially insurance, how much premium is offered to Individual A? Is the premium rate offered the same for Individual B? Explain with the support of graphic illustrations. The government decides to provide compulsory health insurance with a premium rate for Individual A and Individual B, which is 2% of the income of each individual. In…
A poll commissioned by a politician estimates that t days after he makes a statement denegrating women, the percentage of his constituency (those who support him at the time he made the statement) that still supports him is given by S(t) = 75(t2 − 3t + 25)/t2+3t+25The election is 10 days after he made the statement. Was the approval rate positive or negative on the date of the election?
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Brain tumors in children are rare: the base rate is only about 1/10,000. A child with a tumor is very likely to have occasional headaches: 99 out of 100 do. But there are many other reasons a child can have a headache: of those who do not have a tumor, 1 in 10 have occasional headaches. 1. Given that a child has occasional headaches (H), what it the probability that he or she has a brain tumor (T)? Show your work. 2. Name a behavioral bias that may occur when estimating the probability that your child has a brain tumor. Would this bias lead to under-or-overestimate that probability? Explain. 3. Among children with headaches (H), 999/1000 will ultimately be fine (F). Suppose that a physician using a simple test can correctly determine whether the child is fine or not in 95/100 of children with headaches. Given that the doctor after performing the test gives the patient a green light (G), what is the probability that the child really will be fine? Show your work.. Page 1 of 1 175 words…
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