Quantitative Methods 2017

1154-1155 / 1676

Test result
Real status
Fail to reject H0
(No disease)
Reject H0
(Disease)
H0 is true
(No disease)
90 10 100
Ha is true
(Disease)
10 90 100
100 100 200
PPV AND NPV DEPEND ON
PREVALENCE
Prevalence=50%
Sensitivity=90%
Specificity=90%
NPV=90% PPV=90%