Specificity of a diagnostic test is defined as:
A0.95
B0.05
C0.4
D0.8
What is the 95% confidence interval for the intraocular pressure (IOP) in the 400 people, given a mean of 25 mm Hg and a standard deviation of 10 mm Hg?
A22-28
B23-27
C21-29
D24-26
For testing the statistical significance of the difference in heights among different groups of school children, which statistical test would be most appropriate?
AStudent's t test
Bchi-square test
CPaired 't' test
DANOVA
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