A physician wants to assess the potential causes of high cholesterol among her patients to tailor self-care instructions. She has collected data on total cholesterol, BMI, physical activity, age, gender, alcohol consumption, and stress. Use the Chapter09.xls file under the Problem 09-09 tab. Which variables have a statistically significant relationship with total cholesterol? If BMI can be reduced by two points, what is the expected impact on total cholesterol?

Problem 9.9 - Total Cholesterol
Cholesterol	BMI	Phy Act	Age	Sex	Alcohol	Stress	Patient
150	24.5	5	36	1	15	3	20
152	27	2	22	0	12	0	41
153	28.2	0	32	1	5	6	40
154	28.2	4	45	1	24	5	7
156	28.3	5	46	0	19	3	43
157	28.3	3	37	1	16	2	21
159	26.9	4	37	1	26	2	19
159	27.5	3	49	1	1	7	27
161	28.3	4	46	1	10	9	17
161	28.3	2	35	0	16	2	34
163	23.5	5	43	1	28	3	9
163	25.5	3	31	0	26	2	39
167	27.9	4	30	1	12	5	50
168	28.4	1	45	0	6	4	37
171	26.3	5	25	1	3	1	28
184	28.1	2	44	1	3	6	16
185	28.6	4	63	1	9	4	18
186	26.8	5	27	1	12	0	8
197	28.7	4	32	1	24	6	4
199	28.7	2	53	1	18	1	6
201	28.8	4	41	0	22	4	35
217	28.9	1	29	1	14	1	12
218	27.5	3	50	1	19	8	14
219	29	3	47	1	23	3	31
220	29	1	45	1	9	2	32
225	29	3	38	1	23	8	26
234	29.1	0	20	0	11	5	24
237	29.2	2	32	0	24	3	45
240	29.2	1	27	0	5	3	47
241	29.2	2	32	1	17	3	5
246	29.3	2	46	1	11	7	13
254	29.4	0	57	0	6	6	38
257	29.4	2	56	1	20	4	2
262	29.4	1	46	1	15	10	29
264	29.5	1	50	1	1	8	11
268	29.5	1	35	1	9	10	22
269	29.5	2	46	1	1	8	1
271	29.6	2	32	1	19	3	25
271	29.6	5	44	0	19	3	44
272	29.6	0	44	0	21	5	42
275	29.6	1	28	0	27	4	36
275	29.6	0	41	0	6	3	48
283	29.7	2	54	1	4	7	23
285	29.7	3	44	0	17	5	33
285	29.7	1	51	0	0	9	49
290	29.8	1	46	1	14	8	3
294	41.1	0	56	0	28	5	10
294	29.8	1	56	0	17	4	30
297	30.6	2	29	1	12	10	15
297	35.8	0	55	0	9	6	46