7. You have measured the systolic blood pressure of a random sample of 25 employ

Question

7. You have measured the systolic blood pressure of a random sample of 25 employees of a company located near you. A 95% confidence interval for the mean systolic blood pressure for the employees of this company is (122, 138). Which of the following statements gives a valid interpretation of the confidence level?
a. 95% of the sample of employees have a systolic blood pressure between 122 and 138.
b. 95% of the population of employees have a systolic blood pressure between 122 and 138.
c. If the procedure were repeated many times, 95% of the resulting confidence intervals would contain
d. the population mean systolic blood pressure.
e. The probability that the population mean blood pressure is between 122 and 138 is .95.

Explanation / Answer

This means

If the procedure were repeated many times, 95% of the resulting confidence intervals would contain

Option c is correct

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