Question

In a large study of a random sample of 3534 critically ill COVID-19 patients, it was found that the mean systolic blood pressure of the study participants was 127.3 mmHg with a standard deviation of 19 mmHg. What is the 95% confidence interval for the true mean systolic blood pressure for critically ill COVID-19?

Answer 1

SOLUTION:

Case: Confidence interval

Method:

Mean = 127.3 mmHg

Standard Deviation = 19 mmHg

n = 3534

z for 95% = 1.96