The article “Utility of Pretest Probability and Exercise Treadmill Test in Korean Women with Suspected Coronary Artery Disease” (Y. Kim, W. Shim, et al., Journal of Women’s Health, 2015:617–622) presents a study of health outcomes in women with symptoms of heart disease. In a sample of 110 women whose test results suggested the presence of coronary artery disease, the mean peak systolic blood pressure was 169.9 mmHg, with a standard deviation of 24.8 mmHg. In a sample of 225 women whose test results suggested an absence of coronary artery disease, the mean peak systolic blood pressure was 163.3 mmHg, with a standard deviation of 25.8 mmHg. Find a 95% confidence interval for the difference in systolic blood pressure between these two groups of women.
The article “Utility of Pretest Probability and Exercise Treadmill Test in Korean Women
with Suspected Coronary Artery Disease” (Y. Kim, W. Shim, et al., Journal of Women’s
Health, 2015:617–622) presents a study of health outcomes in women with symptoms of
heart disease. In a sample of 110 women whose test results suggested the presence of
coronary artery disease, the
standard deviation of 24.8 mmHg. In a sample of 225 women whose test results
suggested an absence of coronary artery disease, the mean peak systolic blood
pressure was 163.3 mmHg, with a standard deviation of 25.8 mmHg. Find a 95%
confidence interval for the difference in systolic blood pressure between these two groups
of women.
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