A volumetric calcium analysis on triplicate samples of the blood serum of a patient believed to be

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A volumetric calcium analysis on triplicate samples of the blood serum of a patient believed to be suffering from a hyperparathyroid condition produced the following data: mmol Ca/L = 3.15, 3.25, 3.26. What is the 95% confidence interval for the mean of the data, assuming
(a) No prior information about the precision of the analysis?
(b) s → σ = 0.056 mmol Ca/L?
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Fundamentals of Analytical Chemistry

ISBN: 978-0495558286

9th edition

Authors: Douglas A. Skoog, Donald M. West, F. James Holler, Stanley R. Crouch

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