ased on all the information currently available, you estimate that the patient in your office has...
ased on all the information currently available, you estimate that the patient in your office has a one in four chance of having a serious disease. You order a diagnostic test with sensitivity of 95% and specificity of 90%.
The result comes back negative. Based on all the information now available, the chance your patient really has the disease is closest to:
Select one:
a. 5%
b. 1.5%
c. 3%
d. 25%
Homework Answers
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ased on all the information currently available, you estimate
that the patient in your office has...
Based on all the information currently available, you estimate that the patient in your office has...
Based on all the information currently available, you estimate that the patient in your office has a one in four chance of having a serious disease. You order a diagnostic test with sensitivity of 95% and specificity of 90%. The result comes back negative. Based on all the information now available, the chance your patient really has the disease is closest to: Select one: a. 5% b. 1.5% c. 3% d. 25%
validity of a test HELP answer ALL you can !! ... imagine you are a physician...
validity of a test
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answer ALL you can !!
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Note: This is using Bayesian statistics (a) Suppose that in a population, the probability of having...
Note: This is using Bayesian statistics (a) Suppose that in a population, the probability of having a rare disease is 1 in 1000. We use θ to denote the true probability of having the disease. A diagnostic test for this disease has a sensitivity of 99% and a specificity of 95%. A randomly selected person from the population is administered the test and the test and it comes up positive (the test suggests that the person has the disease). What...
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pls answer all 5:12 .. LED < Back 465 practice 2-1.docx 17 imagine you are a...
pls answer all
5:12 .. LED < Back 465 practice 2-1.docx 17 imagine you are a physician discussing the results of a screening test with a patient. 1) If the test was positive how likely is it that he really has the disease? (How worried should he be? 2) If the test was negative how likely is it that he really does NOT have it? How reassured should he be? 1) What does 1) represent? a) Express this measure mathematically...
(1) Suppose you are a physician and have examined a patient whom you believe has a 30% chance of ...
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4. You are asked to estimate the return from a stock based on the following information:...
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validity of a test
HELP
answer ALL you can !!
... imagine you are a physician discussing the results of a screening test with a patient. AC 1) If the test was positive, how likely is it that he really has the disease? [How worried should he be?] 2) If the test was negative, how likely is it that he really does NOT have it? (How reassured should he be?] 1) What does 1) represent? 0 1 Represents that the...
pls answer all
5:12 .. LED < Back 465 practice 2-1.docx 17 imagine you are a physician discussing the results of a screening test with a patient. 1) If the test was positive how likely is it that he really has the disease? (How worried should he be? 2) If the test was negative how likely is it that he really does NOT have it? How reassured should he be? 1) What does 1) represent? a) Express this measure mathematically...
(1) Suppose you are a physician and have examined a patient whom you believe has a 30% chance of having deep venous thrombosis (clots in the veins of the leg). You decide you will treat the patient with anticoagulants (blood thinners) if further testing increases his probability of disease to 85% or more. Similarly, you will send the patient home without treatment if you can reduce his probability of disease to less than 10%. You have a choice of 2...
4. You are asked to estimate the return from a stock based on the following information: Rf= 2%, Risk premium = 6%, and stock Beta of .95. The Expected return is: a. 7.07% b. 7.7% c. 5.8% d. 7.8% e. 7% 5. Citibank economists project the following scenarios for 2021: 35% chance of recession, 45% chance of a neutral economy and the remaining chance of a boom. Given the following returns for your portfolio for each scenario [-18%, 12% &...
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