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Given: a 90% confidence interval estimate for the mean systolic blood pressure of people living in...

Given: a 90% confidence interval estimate for the mean systolic blood pressure of people living in Montgomery County, OH has been determined to be 121 to 138 based on a sample of 30 Montgomery County OH residents conducted by the Montgomery County OH Department of Public Health. Which one of the following statements in a press release issued by the Director of the Department of Public Health of Montgomery County would be correct?

A. If the sampling procedure were repeated many times, 10% of the resulting confidence intervals would not be between 121 and 138.
B. If the sampling procedure were repeated many times, 90% of the resulting confidence intervals would include the true Montgomery County OH population mean blood pressure.
C. 90% of the population of Montgomery County OH has been determined to have systolic blood pressure readings between 121 +/- 12.1 and 138 +/- 13.8.
D. 27 of the sample of 30 individuals had a systolic blood pressure reading between 121 and 138.
Math   Statistics-And-Probability   
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Answer #1

Which one of the following statements in a press release issued by the Director of the Department of Public Health of Montgomery County would be correct?

B.   If the sampling procedure were repeated many times, 90% of the resulting confidence intervals would include the true Montgomery County OH population mean blood pressure.

Interpretation confidence interval:

If repeated samples were taken and the 95% confidence interval computed for each sample, 95% of the intervals would contain the population mean.

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