Towards the end of the semester, some statistics students decides that it might be helpful to stude in groups for their final exam. As a result, two groupes were formed each containig 6 students, The 1st group spaced out their sessions by studying together for 30 minutes a day for 4 days. The 2nd group crammed together for 2 straight hours the night before exam. The remaining 6 students in the class studied individually. After the test, the instructor is interested in seeing if there is a differnce in performance based on the study method.
a. What is the research hypothesis? (null and alternative)
b. Based on the following data, what is the instructor's conclusion? (Please Write 2 sentences explaining your results.
Spaced group--89, 95 86 98 92 92
Cramming group-- 86 86 89 83 95 77
Individually--86 80 86 77 80 74