Question 49 of 50 • EHS Content Recovery - Probability and Statistics - Part D
A clinic measured the systolic blood pressure for a random sample of 10 patients. The resulting 95% confidence interval for the mean systolic blood pressure of all the patients at this clinic was (111.3, 129.5). A doctor commented that, on average, the patients at this clinic have high blood pressure, which is defined as blood pressure over 130. Based on the confidence interval, is the doctor’s statement justified?
Answer
A
Yes, because 130 is greater than the upper bound of the confidence interval.
B
Yes, because there were almost certainly some patients in the sample of 10 whose blood pressure was over 130.
C
No, because 130 is greater than the upper bound of the confidence interval.
D
No, because the sample mean blood pressure from the 10 sampled patients was 120.4.