Which of the scenarios below would a t-test of the difference between means for dependent samples be appropriate?
a) Comparing the mean mathe 2G pfa sample of Grade 8 students in a peer instruction program and a sample of Grade 8 students receiving traditional instruction.
b) Comparing the mean perception of company morale of a sample of managers and a sample of subordinates of each manager.
c) Comparing the mean bullying awareness scores of a sample of Grade 6 boys and a sample of Grade 6 girls at a particular school.
d) Comparing the mean amount of time spent studying of a sample of adult learners and a sample of traditional students in an online course.