1. Which of the following statistical tests is most

appropriate to analyze the relationship between two

continuous variables in healthcare research?

A. Chi-square test

B. T-test

C. Pearson correlation coefficient

D. Mann-Whitney U test

Answer: C. Pearson correlation coefficient

Rationale: The Pearson correlation coefficient is used to

measure the strength and direction of a linear relationship

between two continuous variables.

2. A researcher is comparing the mean blood pressure

levels of two different groups of patients. Which statistical

test should be used to determine if there is a significant

difference between the groups?

A. ANOVA

B. T-test

C. Mann-Whitney U test

D. Chi-square test

Answer: B. T-test

Rationale: A t-test is appropriate for comparing the means

of two groups with continuous data.

3. A healthcare study is investigating the association

between smoking status and the incidence of lung cancer.

Which statistical test is most suitable for analyzing this