The systolic blood pressures (mmHg) of 12 women between the ages of 20 and 35 were measured before and after administration of a newly developed oral contraceptive (Table E4.25). TABLE E4.25 Subject...

calculate the 95% confidence interval for pearsons correlation coefficient representing a possible relationship between the systolic blood pressure before and after the use of oral contraceptives. Does these measurements correlate to each other?

Extracted text: The systolic blood pressures (mmHg) of 12 women between the ages of 20 and 35 were measured before and after administration of a newly developed oral contraceptive (Table E4.25). TABLE E4.25 Subject Before After After-before difference, d, 1 122 127 5 2 126 128 2 3 132 140 8 4 120 119 -1 142 145 3 130 130 7 142 148 6 8 137 135 -2 128 129 1 10 132 137 5 11 128 128 12 129 133 4