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tion 2 of 3 experiment trained dogs to distinguish breath specimens of lung cancer patients from breath specimens of control individuals by using a food-reward

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tion 2 of 3 experiment trained dogs to distinguish breath specimens of lung cancer patients from breath specimens of control individuals by using a food-reward training method. After the training was complete, the dogs were tested on new breath specimens without any reward or clue using a double-blind, completely randomized design. The results for a random sample of 1292 breath specimens. Note: The numerical values in this problem have been modified for testing purposes. Breath specimen from A Dog test result Control subject Cancer subject Total Negative 717 10 727 Positive 3 562 565 Total 720 572 1292 (a) The sensitivity of a diagnostic test is its ability to correctly give a positive result when a person tested has the disease, or P (positive test | disease) . Find the sensitivity of the dog cancer-detection test for lung cancer. (Enter your answer rounded to four decimal places.) P (positive test | disease) = (b) The specificity of a diagnostic test is the conditional probability that the subject tested doesn't have the disease, given that the test has come up negative. Find the specificity of the dog cancer-detection test for lung cancer. (Enter your answer rounded to four decimal places.) P (no disease | negative) = Question Source: Moore, The Basic Practice Of Statistics, 8e Publisher: W.H. Freeman

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