Q1 Researchers wanted to know if there was a difference in age between women who took prenatal classes or not. The independent variable was whether the mother took part in took prenatal classes or not. The outcome variable was age divided into three age groups. H0 = Mean1 = Mean2 = Mean3 Data on age and class participation was collected at the first postnatal visit. What would be the most appropriate statistical test to use in this study?

A. T-test

B. Chi-square

C. ANOVA

Q2 The prevalence of influenza increases in your community. How would this affect the positive predicative value of nasal swabs to detect influenza?

A. It increase the positive predicative value

B. It decreases the positive predicative value

C. It remains the same

D. We do not have enough information to know