Solutions Statistics

The following data (and partial analysis) on blood pressure was gathered at an employer health fair.

Question: The following data (and partial analysis) on blood pressure was gathered at an employer health fair. A sample of 92 employees were screened and their blood pressures and sex were recorded (also pulse, height and weight). SYST= systolic pressure, DIAST = diastolic pressure (both in mm of mercury); SEX = 1 for males and 0 for females. Normally, a person's systolic pressure is higher than his/her diastolic pressure. The company would like to know if there are any interesting patterns in this data.

OBS	SYST	DIAST	SEX	systdev	systdev2	sexdev	sexdev2	syst-sex

1	108	78	1	-13.96	194.78	0.4783	0.2287	-6.6749
2	108	76	1	-13.96	194.78	0.4783	0.2287	-6.6749
3	108	68	0	-13.96	194.78	-0.5217	0.2722	7.2817
4	106	60	0	-15.96	254.61	-0.5217	0.2722	8.3251
5	124	90	1	2.04	4.18	0.4783	0.2287	0.9773
6	110	78	0	-11.96	142.96	-0.5217	0.2722	6.2382
7	126	84	0	4.04	16.35	-0.5217	0.2722	-2.1096
	and	many	more ...
86	110	80	0	-11.96	142.96	-0.5217	0.2722	6.2382
87	104	70	0	-17.96	322.44	-0.5217	0.2722	9.3686
88	126	86	0	4.04	16.35	-0.5217	0.2722	-2.1096
89	172	114	1	50.04	2504.35	0.4783	0.2287	23.9338
90	150	100	1	28.04	786.44	0.4783	0.2287	13.4121
91	136	78	1	14.04	197.22	0.4783	0.2287	6.7164
92	112	70	0	-9.96	99.13	-0.5217	0.2722	5.1947

SUM	11220	7502	48	0.00	23223.8	0.00	22.96	316.09