Reference no: EM132250949

Assignment -

In the following experiment the researcher was interested in the side effects of radiation therapy on patents suffering cancerous lesions. In particular he was interested in the effect of radiation therapy on Mental dexterity. Each patient was scored (Pre test) on a mental dexterity test prior to treatment. They were again scored on a similar test (Post Test) one month after treatment began.

N₁ = 16 were not given radiation and served as controls,

N₂ = 19 were given radiation dosage in the range 25-50,

N₃ = 18 were given radiation dosage in the range 75-100, and

N₄ = 21 were given radiation dosage in the range 125-250.

The data were tabulated below:

Control, N = 16		25-50 R, N = 19		75-100 R, N = 18		125-250 R, N = 21
Pre test	Post Test	Pre test	Post Test	Pre test	Post Test	Pre test	Post Test
72	74	58	55	23	16	64	51
58	57	58	57	60	51	42	26
66	74	56	57	54	43	52	35
51	56	73	59	48	40	47	27
30	28	49	42	45	35	53	40
48	40	53	49	37	31	65	50
58	61	28	29	50	48	67	46
51	50	31	43	44	31	32	25
38	40	23	29	39	31	77	58
56	56	61	62	57	46	32	24
68	72	40	37	26	14	58	45
36	38	57	59	50	54	46	32
53	53	38	48	47	41	45	30
65	72	77	79	43	30	74	68
32	24	69	64	41	30	41	17
64	62	72	67	45	44	46	29
		50	46	68	69	39	20
		49	49	62	35	61	38
		51	46			50	33
						29	12
						72	54
						38	23

Analyze this data stating your conclusions.

Attachment:- Assignment Files.rar