Patient id	sysbp	Drug	at risk
1	159.6	0	1
2	130.5	0	0
3	98.9	0	0
4	137.6	0	0
5	209.7	0	1
6	164.4	0	1
7	125.5	0	0
8	170.8	0	1
9	161.8	0	1
10	216.5	0	1
11	183.5	0	1
12	153.6	0	1
13	145.2	0	1
14	156.6	0	1
15	179.1	0	1
16	181.4	0	1
17	187.7	0	1
18	135.4	0	0
19	154.4	0	1
20	168.5	0	1
21	175.4	0	1
22	151.9	0	1
23	143.1	0	1
24	167.9	0	1
25	165.3	0	1
26	151.8	0	1
27	147.2	0	1
28	132.6	0	0
29	172.3	0	1
1	160.6	1	1
2	182.7	1	1
3	168.5	1	1
4	154.3	1	1
5	112.2	1	0
6	121.1	1	0
7	112.4	1	0
8	149.7	1	1
9	144.2	1	1
10	150.3	1	1
11	176.5	1	1
12	142.5	1	1
13	148.5	1	1
14	148.3	1	1
15	170.2	1	1
16	165.5	1	1
17	160	1	1
18	135	1	0
19	116.1	1	0
20	141.4	1	1
21	135.4	1	0
22	136.7	1	0
23	157.9	1	1
24	119.7	1	0
25	124.9	1	0
26	133.5	1	0
27	173.1	1	1
28	156.1	1	1
29	160	1	1

1. Formally test the statistical hypothesis that mean systolic blood pressure is different between those on the drug and those not on the drug. Be sure to fully report the hypothesis test. Report all numbers to 2 decimal places except for degrees of freedom which are reported as whole numbers. (5 marks)