Mathematics, 14.02.2020 00:29 kaitlynmoore42
A physical examination and an audiometric test were given to 500 persons with suspected hearing problems, of whom 300 were actually found to have them. The results of the examinations were as follows
1. Physical Exam 2. Audiometric Test
Result
Hearing Problem
Present Absent
Result
Hearing Problem
Present Absent
Positive
240 40
Positive
270 60
Negative
60 160
Negative
30 140
For each of the two exams, Define and calculate the followings:
The Sensitivity of this test
The specificity of the test
Predictive value positive
Predictive value negative
Compared to the physical exam, the audiometric test is:
A. Equally sensitive and specific
B. Less sensitive and less specific
C. less sensitive and more specific
D. more sensitive and less specific
E. more sensitive and more specific
Answers: 2
Mathematics, 21.06.2019 19:00
Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?
Answers: 1
Mathematics, 21.06.2019 23:00
Afunction, f(x), represents the height of a plant x months after being planted. students measure and record the height on a monthly basis. select the appropriate domain for this situation. a. the set of all positive real numbers b. the set of all integers oc. the set of all positive integers od. the set of all real numbers reset next
Answers: 3
Mathematics, 21.06.2019 23:30
Tatiana wants to give friendship bracelets to her 32 classmates. she already has 5 bracelets, and she can buy more bracelets in packages of 4. write an inequality to determine the number of packages, p, tatiana could buy to have enough bracelets.
Answers: 1
Mathematics, 21.06.2019 23:30
Which two fractions are equivalent to 6/11? 6/22 and 18/33 12/22 and 18/33 12/22 and 18/22 3/5 and 6/10
Answers: 1
A physical examination and an audiometric test were given to 500 persons with suspected hearing prob...
Chemistry, 24.04.2020 00:40
English, 24.04.2020 00:40
Mathematics, 24.04.2020 00:40
Social Studies, 24.04.2020 00:40
English, 24.04.2020 00:40
Social Studies, 24.04.2020 00:40
Mathematics, 24.04.2020 00:40
Mathematics, 24.04.2020 00:40
Mathematics, 24.04.2020 00:40