A researcher is interested in the difference between the ave

A researcher is interested in the difference between the average blood pressures of students before and after an exam. What kind of method of research study is this?

A. One Sample T-tests

B. Two sample t-test

C. ANOVA

D. Correlation

E. Simple Linear Regression

F. One- Sample z test

Solution

B. Two sample t-test

First sample before exam and second after exam.