An educational researcher wanted to know if in-class activities significantly improved students’ learning compared to traditional lecture only teaching methods. Ten students matched on GPA, Year in school, and academic major were randomly selected from the current student population. One student from each pair was randomly assigned to either the Lecture Only class or Lecture plus Group Activities class. At the end of the semester, students’ final exam scores were recorded and teaching methods were compared. Which type of statistical test should the researcher do?A. one sample Z-test
B. one sample t-test
C. independent two sample t-test
D. matched pairs t-test