Below is a hypothetical dataset of 32 participants of a study that wants to examine the effects of age on systolic blood pressure (BP). There are 17 male (M) and 15 female (F) volunteers in the dataset.

id	Age	Systolic BP	Gender
1	39	144	M
2	47	141	F
3	45	138	F
4	47	145	M
5	65	173	M
6	46	142	F
7	67	170	M
8	42	124	F
9	67	178	M
10	56	160	F
11	64	179	M
12	56	150	M
13	59	140	F
14	34	110	F
15	42	128	F
16	48	130	F
17	45	135	M
18	17	95	M
19	20	116	M
20	19	124	F
21	36	136	M
22	50	162	M
23	39	120	F
24	21	120	F
25	44	160	M
26	53	158	M
27	63	144	F
28	29	130	M
29	25	110	F
30	18	111	F
31	40	150	M
32	70	180	M

1.Assuming all assumptions are met, what is the numeric value of the coefficient that gives the association between our exposure (age) and the outcome variable (BP)? Give your answer to two decimal places.

2. Interpret your answer.

3. A colleague believes gender plays an important role in the relationship between age and systolic BP. Carry out appropriate statistical analysis to determine if gender is confounding and/or modifying the association between age and systolic BP. Document your steps, report key findings, and state your conclusion in words.