A professor wanted to determine whether an online homework system improved scores on a final exam. In the fall semester, he taught a class usin homework system (which meant students did their homework online and received instant feed eedback about their answers along with helpful guidance emester, he taught a class without the homework system (which meant students were respons onsible for doing their homework the old-fashioned w encil). The professor made sure to teach the the results of the two classes on their final exam. Complete parts (a) through (e) Click the icon to view the table. (a) What type of experimental design is this? O A. Prospective study &B. Completely randomized design O C. Randomized blocked design D. Retrospective study (b) What is the response variable? Location O Teacher O Syllabus &Final exam scores O Text Homework system O What are the treatments in the study? Select all that apply. Test Final exam scores Text Homework system ) Teacher Syllabus Weather (c) What factors are controlled in the Summary data X Text Test Location Fall semester Spring semester Weather Number of students 28 Mean final exam score 71.1 65.3 (d) In many experiments, the resea Standard deviation final exam score 9.1 12 egard was this d experiment? O A. The assumption is that the Print Done B. The assumption is that the O C. The assumption is that the students knew about the to be in one O D. No assumptions were made for this experiment (e) Did the students perform better on the final exam in the fall semester? Use an a = 0.10 level of significance. State the null and alternative hypot O A. Ho: 1tal = Pspring M B. Ho: Ptad " Papring Hy: Mall Hspring O C. Ho: Hall " Hapting OD. Ho: Paul > Hapring Hy: Mean * Hspring Hy: Peas *#spring Determine the P-value for this hypothesis test. P-value = (Round to three decimal places as needed.)X H Summary data Fall semester Spring semester Number of students 29 25 Mean final exam score 73.4 64.6 Standard deviation final exam 10.5 11 score Print Done