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Mean dbp and sample standard deviation

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Two researchers are interested in estimating the mean diastolic blood pressure (DBP) in obese teenage females. Researcher 1 measures DBP on a sample of 100 obese teenage females and Researcher 2 does the same, but on a different sample of 200 obese teenage females, and both construct 95% confidence intervals. After collecting the data, surprisingly both the mean DBP and sample standard deviation are identical for both samples. Which of the following is true?

Reference no: EM132154342

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