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
The difference between the incidence in the exposed and non-exposed group is best given by:
AAttributable risk
BPopulation attributable risk
COdds ratio
DRelative risk
Which of the following statements about the normal distribution curve is true?
AMean = 2 Median
BMean = Median
CMedian = Variance
DStandard Deviation = 2 Variance
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