Mathematics, 07.10.2019 19:30 hisachokdee
Astudy wanted to assess the accuracy of self-reported smoking status. participants are asked whether they currently smoke or not. in addition, laboratory tests are performed on hair samples to determine presence or absence of nicotine. the laboratory assessment is considered the gold standard, or truth about nicotine. the data are as follows.
(a) what is the sensitivity of the self-reported smoking status?
(b) what is the specificity of the self-reported smoking status?
nicotine absent nicotine present
self-reported nonsmoker 82 14
self-reported smoker 12 52
Answers: 3
Mathematics, 21.06.2019 16:10
The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82
Answers: 2
Mathematics, 21.06.2019 19:00
Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?
Answers: 1
Mathematics, 21.06.2019 20:20
Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.
Answers: 1
Astudy wanted to assess the accuracy of self-reported smoking status. participants are asked whether...
Mathematics, 01.09.2019 23:50
Social Studies, 01.09.2019 23:50
Business, 01.09.2019 23:50
Mathematics, 01.09.2019 23:50
Mathematics, 01.09.2019 23:50
Chemistry, 02.09.2019 00:00
History, 02.09.2019 00:00
Biology, 02.09.2019 00:00
Mathematics, 02.09.2019 00:00
Mathematics, 02.09.2019 00:00
Mathematics, 02.09.2019 00:00