The article “Utility of Pretest Probability and Exercise Treadmill Test in Korean Women with Suspected Coronary Artery Disease” 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 testresults 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.

What will be an ideal response?


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Mean and percentiles are concepts used in _____ to describe data.

A. geometry B. statistics C. databases D. organizations

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Electricity will NOT generally cause:

A. Loss of muscle control coordination B. Internal bleeding C. Dementia D. Cardiac arrest

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The refrigerant in an absorption chiller whose source of energy is steam or hot water is ____________________.

Fill in the blank(s) with the appropriate word(s).

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?In a condensing boiler, where does the condensation occur?

A. ?in the combustion chamber B. ?in the primary heat exchanger C. ?in the secondary heat exchanger D. ?at the water inlet

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