Observation	Test Number	SCORES	STUDY	LIBRARY
16	1	48	4	0
17	2	73	7	12
18	3	54	2	6
19	4	67	5	4
20	5	71	6	3
21	6	60	4	2
22	7	46	1	2
23	8	80	15	5
24	9	62	3	8
25	10	75	7	5
26	11	37	3	0
27	12	77	6	12
28	13	69	5	4
29	14	75	8	6
30	15	65	6	3