a) Determine the mean reduction in Blood pressure for subjects on a weekly exercise program . b) Determine the 1st quartile (Q1) in the reduction in Blood pressure for subjects on a daily exercise...

a) Determine the mean reduction in Blood pressure for subjects on a weekly exercise program .

b) Determine the 1st quartile (Q1) in the reduction in Blood pressure for subjects on a daily exercise program .

c) Determine the median reduction in Blood pressure for subjects on a daily exercise program

Choose the correct option

Extracted text: a) 1.85 b) 8.60 c) 9.05 d) 11.20 e) 16.05 f) 16.55 g) 18.00 h) 18.01 i) 21.60 j) 23.25


Extracted text: In a study to investigate the effect of regular physical exercise on the reduction of high blood pressure in males aged 60-65, the researchers selected at random a sample of n, = 12 males suffering from high blood pressure in the given age group and for a two-year period placed the subjects on a daily physical exercise program. A second sample of n, = 12 males suffering from high blood pressure in the given age group was selected and again for the two-year period this group of subjects were placed on a physical exercise program for which they were required to perform only once a week. Finally a third sample of n, =12 males suffering from high blood pressure in the given age group was selected. No exercise program was required for individuals in sample three. At the end of the two-year period the reduction in blood pressure was measured for each of the subjects in the study and is presented in the table on the next page. Table V.1: Reduction in Blood pressure for three groups of males aged 60-65 initially suffering from high blood pressure. Exercise Daily Weekly No 21.2 15.7 5.6 15.6 18.5 -5.7 4.5 29.0 -14.8 32.0 17.4 4.9 20.4 6.7 8.6 12.2 11.4 18.6 11.2 4.1 -7.9 30.9 23.5 15.2 10.4 15.1 -2.3 23.7 5.8 -8.9 22.8 25.7 -1.2 11.2 19.7 8.6 Er 216.1 192.6 20.7 Er? 4697.43 3786.64 1180.17