assume average prevalence of breast cancer is 35 per 10000 women.screening test has sensitivity of 0.95.what...
assume average prevalence of breast cancer is 35 per 10000 women.screening test has sensitivity of 0.95.what should be the specifity of the test to guarantee less then 10% of false-positive results out of all positive results
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assume average prevalence of breast cancer is 35 per 10000
women.screening test has sensitivity of 0.95.what...
Suppose that the prevalence of breast cancer in a certain population of women is 0.30. Assume...
Suppose that the prevalence of breast cancer in a certain population of women is 0.30. Assume that the sensitivity of a mammogram to detect breast cancer is 0.83, and the specificity of a mammogram is 0.90. What is the predictive value positive for this test, in this population?
A woman is worried that she might have breast cancer. The standard test for breast cancer...
A woman is worried that she might have breast cancer. The standard test for breast cancer is mammography. From research she found online, she discovers the sensitivity for the mammography screening is 83% and the specificity is 96% . Her doctor has told her that one in 45 women in her forties will have breast cancer. Based on the sensitivity, specificity, and prevalence, determine the positive predictive value (PPV) for the mammography screening. Express your answer to three decimal places.
A woman is worried that she might have breast cancer. The standard test for breast cancer...
A woman is worried that she might have breast cancer. The standard test for breast cancer is mammography. From research she found online, she discovers the sensitivity for the mammography screening is 89% and the specificity is 96%. Her doctor has told her that one in 61 women in her forties will have breast cancer. Based on the sensitivity, specificity, and prevalence, determine the positive predictive value (PPV) for the mammography screening. Express your answer to three decimal places. PPV...
Breast cancer occurs most frequently among older women. Of all age groups, women in their 60s...
Breast cancer occurs most frequently among older women. Of all age groups, women in their 60s have the highest rate of breast cancer. It is estimated that 3.7% of women in their 60s get breast cancer. Mammograms are X-ray images of the breast used to detect breast cancer. A mammogram can typically identify correctly 84.9% of cancer cases (sensitivity = 84.9%) and 95.13% of cases without cancer (specificity = 95%). (This is exactly like problem #11) First write down the...
A new test for detecting breast cancer is negative in 95% of patients who do not...
A new test for detecting breast cancer is negative in 95% of patients who do not have the disease. If the test is used with 8 consecutive blood samples taken from patients with out the disease what is the probability of getting at least one positive test result? What is the probability of getting 8 positive test results? If 20% of a given population suffers from hypertension and 10% from hypotension, the probability that a randomly selected member of this...
4. Breast cancer occurs most frequently among older women, Of all age groups, women in their...
4. Breast cancer occurs most frequently among older women, Of all age groups, women in their 60s have the highest rate of breast cancer. It is estimated that 3.7% of women in their 60s get breast cancer. Mammograms are X-ray images of the breast used to detect breast cancer. A mammogram can typically identify correctly 84.9% of cancer cases (sensitivity 84.9%) and 95.13% of cases without cancer (specificity = 95%). (This is exactly like problem #11) First write down the...
***PLEASE label what answer is for what question as clear as possible**** (Yes this is ONE...
***PLEASE label what answer is for what question as clear as possible**** (Yes this is ONE question) Suppose that 50,000 women who have never had a breast cancer diagnosis are available and willing to participate in a new screening program of computerized digital mammography. At the first screen, 1132 women were positive on the screening test. All of these positive women had a breast biopsy and 136 were diagnosed with breast cancer. Of the 48,868 who screened “negative” on the...
The DoubleCheckGoldTM HIV 1&2 test has a sensitivity of 99.9% and a specificity of 99.6%. Suppose...
The DoubleCheckGoldTM HIV 1&2 test has a sensitivity of 99.9% and a specificity of 99.6%. Suppose that a particular high-risk population has an HIV prevalence of 10%. a. Suppose that a member of this high-risk population is known to be HIV positive. What is the probability that this person will produce a false negative result using this test? Report the result to the nearest tenth of a percent. b. Compute and interpret the positive predictive value for this test when...
To prevent developing a certain type of cancer, Health Canada organize a di- agnostic test. The...
To prevent developing a certain type of cancer, Health Canada
organize a di- agnostic test. The false positive and negative rates
for this diagnostic test are five percent and four percent,
respectively. Assume that five percent of the population has this
type of cancer.
1. If a randomly selected person has a positive test result,
what is the prob- ability that the person has this type of
cancer?
2. The test is administrated twice on the same patient. Assume
that...
To prevent developing a certain type of cancer, Health Canada organize a diagnostic test. The false...
To prevent developing a certain type of cancer, Health Canada organize a diagnostic test. The false positive and negative rates for this diagnostic test are five percent and four percent, respectively. Assume that five percent of the population has this type of cancer. If a randomly selected person has a positive test result, what is the probability that the person has this type of cancer The test is administrated twice on the same patient. Assume that the test results are...
Suppose that the prevalence of breast cancer in a certain population of women is 0.30. Assume that the sensitivity of a mammogram to detect breast cancer is 0.83, and the specificity of a mammogram is 0.90. What is the predictive value positive for this test, in this population?
4. Breast cancer occurs most frequently among older women, Of all age groups, women in their 60s have the highest rate of breast cancer. It is estimated that 3.7% of women in their 60s get breast cancer. Mammograms are X-ray images of the breast used to detect breast cancer. A mammogram can typically identify correctly 84.9% of cancer cases (sensitivity 84.9%) and 95.13% of cases without cancer (specificity = 95%). (This is exactly like problem #11) First write down the...
To prevent developing a certain type of cancer, Health Canada
organize a di- agnostic test. The false positive and negative rates
for this diagnostic test are five percent and four percent,
respectively. Assume that five percent of the population has this
type of cancer.
1. If a randomly selected person has a positive test result,
what is the prob- ability that the person has this type of
cancer?
2. The test is administrated twice on the same patient. Assume
that...
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