Question
In: Math
. Refer to the accompanying table showing results from a Chembio test for Hepatitis C among...
. Refer to the accompanying table showing results from a Chembio test for Hepatitis C among HIV-infected patients.
|
Positive Test Result |
Negative Test Result |
|
|
Hepatitis C |
335 |
10 |
|
No Hepatitis C |
2 |
1153 |
a. Find the probability of selecting a subject with a positive test result, given that the subject does not have hepatitis C. Why is this case problematic for test subjects?
b. Find the probability of selecting a subject with a negative test result, given that the subject has hepatitis C. What would be an unfavorable consequence of this error?
c. Find the positive predictive value for the test. That is, find the probability that a subject has hepatitis C, given that the test yields a positive result. Does the result make the test appear to be effective?
d. Find the negative predictive value for the test. That is, find the probability that a subject does not have hepatitis C, given that the test yields a negative result. Does the result make the test appear to be effective?
Solutions
milcah answered 2 months agoRelated Solutions
Refer to the accompanying data display that results from a sample of airport data speeds in...
Refer to the accompanying data display that results
from a sample of airport data speeds in mbps.complete parts (a)
through (c) below .
T INTERVAL (13.046,22.15)
_
x=17.598
sx=16.01712719
n=50
a.express the confidence interval in the format that
uses the "less than" symbol. Given that the original listed data
use one decimal place, round the confidence interval limits
accordingly.
mbps <u <Mbps
Use the data in the accompanying table that summarizes results from a clinical trial of a...
Use the data in the
accompanying table that summarizes results from a clinical trial of
a drug. Let A = Drug Treatment, B = Placebo
headache
No Headache
total
Drug Treatment (A)
122
585
707
Placebo ( B)
28
672
700
Total
150
1257
1407
Answer the
following:
1. Find the
probability that patient under treatment p(A)
2. Find p(B)
3. Find the
probability a patient has a headache
4. Find the
probability a patient has a headache and he...
Refer to the accompanying data table. The entries are weights (pounds) and pulse (beats/min) from male...
Refer to the accompanying data table. The entries are weights
(pounds) and pulse (beats/min) from male subjects examined as part
of a large study conducted by a health organization. The data are
matched, so that the first subject has a weight of 169.1 and a
pulse of 68, and so on. Given the context of the data in the table,
what issue can be addressed by conducting a statistical analysis of
the measurements?
A. Is there a relationship or an...
The accompanying table describes results from groups of 8 births from 8 different sets of parents....
The accompanying table describes results from groups of 8 births
from 8 different sets of parents. The random variable x represents
the number of girls among 8 children. Complete parts (a) through
(d) below.
Click the icon to view the table.
a. Find the probability of getting exactly 6 girls in 8
births.
nothing
_____ (Type an integer or a decimal. Do not round.)
number of girls (x) P(x)
Number of girls (x)
P(x)
0
0.004
1
0.016
2
0.111...
The accompanying table describes results from groups of 8 births from 8 different sets of parents....
The accompanying table describes results from groups of 8 births
from 8 different sets of parents. The random variable x represents
the number of girls among 8 children. Complete parts (a) through
(d) below. LOADING... Click the icon to view the table. a. Find the
probability of getting exactly 1 girl in 8 births.Number of Girls x
P(x) 0 0.002 1 0.028 2 0.117 3 0.217 4 0.272 5 0.217 6 0.117 7
0.028 8 0.002
The accompanying table describes results from groups of 8 births from 8 different sets of parents....
The accompanying table describes results from groups of 8 births
from 8 different sets of parents. The random variable x represents
the number of girls among 8 children. Complete parts (a) through
(d) below. . Find the probability of getting exactly 1 girl in 8
births. P(x) Number of Girls x P(x) 0 0.002 1 0.022 2 0.117 3
0.227 4 0.264 5 0.227 6 0.117 7 0.022 8 0.002
The accompanying table describes results from groups of 8 births from 8 different sets of parents....
The accompanying table describes results from groups of 8 births
from 8 different sets of parents. The random variable x represents
the number of girls among 8 children. Complete parts (a) through
(d) below. LOADING... Click the icon to view the table. a. Find the
probability of getting exactly 6 girls in 8 births. . 107 (Type an
integer or a decimal. Do not round.) b. Find the
probability of getting 6 or more girls in 8 births.
The accompanying data table describes results from groups of 10 births from 10 different sets of...
The accompanying data table describes results from groups of 10
births from 10 different sets of parents. The random variable x
represents the number of girls among 10 children. Complete the
questions below. LOADING... Click the icon to view the data table.
Use the range rule of thumb to identify a range of values
containing the usual numbers of girls in 10 births. The maximum
usual value is 0.2. (Round to one decimal place as needed.)x
P(x)
0 0.004
1...
The accompanying table describes results from groups of 10 births from 10 different sets of parents....
The accompanying table describes results from groups of 10
births from 10 different sets of parents. The random variable x
represents the number of girls among 10 children. Use the range
rule of thumb to determine whether 1 girl in 10 births is a
significantly low number of girls.
x P(x)
0 0.004
1 0.015
2 0.037
3 0.113
4 0.206
5 0.239
6 0.204
7 0.116
8 0.038
9 0.019
10 0.009
The accompanying data table describes results from groups of 10 births from 10 different sets of...
The accompanying data table describes results from groups of 10
births from 10 different sets of parents. The random variable x
represents the number of girls among 10 children.
x P(x)
0 0.001
1 0.018
2 0.036
3 0.116
4 0.196
5 0.246
6 0.195
7 0.114
8 0.038
9 0.017
10 0.023
Find the maximum and minimum usual value.
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