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A hospital measures blood pressure using an automatic cuff improperly calibrated to systematically read 8 mmHg lower than true values. Researchers calculate a 95% confidence interval for mean systolic pressure based on 400 measurements: [118, 128]. Why is this confidence interval misleading?
A hospital measures blood pressure using an automatic cuff improperly calibrated to systematically read 8 mmHg lower than true values. Researchers calculate a 95% confidence interval for mean systolic pressure based on 400 measurements: [118, 128]. Why is this confidence interval misleading?